./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7bfb32b49701ea1484553c69a9c6c976094bd0d4ca4d5ea9d4d30cdc2f2571dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:47:25,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:47:25,207 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 07:47:25,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:47:25,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:47:25,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:47:25,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:47:25,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:47:25,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:47:25,232 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:47:25,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:47:25,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:47:25,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:47:25,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:47:25,234 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:47:25,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:47:25,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:47:25,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:47:25,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:47:25,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:47:25,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:47:25,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:47:25,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:47:25,236 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bfb32b49701ea1484553c69a9c6c976094bd0d4ca4d5ea9d4d30cdc2f2571dd [2024-12-02 07:47:25,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:47:25,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:47:25,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:47:25,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:47:25,455 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:47:25,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c [2024-12-02 07:47:28,111 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/data/e5e580e7a/9893edeb3f0240afbc3028d5df7abb74/FLAG7d9522d95 [2024-12-02 07:47:28,370 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:47:28,371 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c [2024-12-02 07:47:28,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/data/e5e580e7a/9893edeb3f0240afbc3028d5df7abb74/FLAG7d9522d95 [2024-12-02 07:47:28,695 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/data/e5e580e7a/9893edeb3f0240afbc3028d5df7abb74 [2024-12-02 07:47:28,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:47:28,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:47:28,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:47:28,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:47:28,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:47:28,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:47:28" (1/1) ... [2024-12-02 07:47:28,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4628f56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:28, skipping insertion in model container [2024-12-02 07:47:28,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:47:28" (1/1) ... [2024-12-02 07:47:28,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:47:28,861 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c[1255,1268] [2024-12-02 07:47:29,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:47:29,027 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:47:29,038 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c[1255,1268] [2024-12-02 07:47:29,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:47:29,144 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:47:29,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29 WrapperNode [2024-12-02 07:47:29,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:47:29,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:47:29,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:47:29,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:47:29,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,354 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1243 [2024-12-02 07:47:29,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:47:29,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:47:29,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:47:29,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:47:29,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,456 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:47:29,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,490 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:47:29,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:47:29,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:47:29,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:47:29,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (1/1) ... [2024-12-02 07:47:29,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:47:29,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:29,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:47:29,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:47:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:47:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:47:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:47:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:47:29,787 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:47:29,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:47:31,263 INFO L? ?]: Removed 682 outVars from TransFormulas that were not future-live. [2024-12-02 07:47:31,263 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:47:31,278 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:47:31,278 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 07:47:31,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:47:31 BoogieIcfgContainer [2024-12-02 07:47:31,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:47:31,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:47:31,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:47:31,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:47:31,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:47:28" (1/3) ... [2024-12-02 07:47:31,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b247c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:47:31, skipping insertion in model container [2024-12-02 07:47:31,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:47:29" (2/3) ... [2024-12-02 07:47:31,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b247c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:47:31, skipping insertion in model container [2024-12-02 07:47:31,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:47:31" (3/3) ... [2024-12-02 07:47:31,288 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_palu.c [2024-12-02 07:47:31,300 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:47:31,301 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_palu.c that has 1 procedures, 362 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:47:31,353 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:47:31,364 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50b224a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:47:31,364 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:47:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.4972222222222222) internal successors, (539), 361 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:31,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 07:47:31,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:31,375 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:31,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:31,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:31,379 INFO L85 PathProgramCache]: Analyzing trace with hash 596137605, now seen corresponding path program 1 times [2024-12-02 07:47:31,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:31,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652515324] [2024-12-02 07:47:31,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:31,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:32,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:32,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652515324] [2024-12-02 07:47:32,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652515324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:32,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:32,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:47:32,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436839089] [2024-12-02 07:47:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:32,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:47:32,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:32,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:47:32,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:47:32,130 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.4972222222222222) internal successors, (539), 361 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:32,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:32,202 INFO L93 Difference]: Finished difference Result 681 states and 1017 transitions. [2024-12-02 07:47:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:47:32,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-12-02 07:47:32,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:32,213 INFO L225 Difference]: With dead ends: 681 [2024-12-02 07:47:32,213 INFO L226 Difference]: Without dead ends: 361 [2024-12-02 07:47:32,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:47:32,219 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:32,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1593 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-12-02 07:47:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-12-02 07:47:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.4916666666666667) internal successors, (537), 360 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 537 transitions. [2024-12-02 07:47:32,267 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 537 transitions. Word has length 51 [2024-12-02 07:47:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:32,267 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 537 transitions. [2024-12-02 07:47:32,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 537 transitions. [2024-12-02 07:47:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 07:47:32,269 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:32,269 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:32,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:47:32,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:32,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:32,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1302092023, now seen corresponding path program 1 times [2024-12-02 07:47:32,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:32,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491672018] [2024-12-02 07:47:32,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:32,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491672018] [2024-12-02 07:47:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491672018] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:32,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:32,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:47:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469211258] [2024-12-02 07:47:32,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:32,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:47:32,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:32,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:47:32,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:47:32,601 INFO L87 Difference]: Start difference. First operand 361 states and 537 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:32,645 INFO L93 Difference]: Finished difference Result 682 states and 1015 transitions. [2024-12-02 07:47:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:47:32,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-12-02 07:47:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:32,648 INFO L225 Difference]: With dead ends: 682 [2024-12-02 07:47:32,648 INFO L226 Difference]: Without dead ends: 363 [2024-12-02 07:47:32,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:47:32,649 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:32,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-12-02 07:47:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-12-02 07:47:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.488950276243094) internal successors, (539), 362 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 539 transitions. [2024-12-02 07:47:32,664 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 539 transitions. Word has length 52 [2024-12-02 07:47:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:32,665 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 539 transitions. [2024-12-02 07:47:32,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 539 transitions. [2024-12-02 07:47:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 07:47:32,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:32,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:32,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:47:32,667 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:32,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:32,667 INFO L85 PathProgramCache]: Analyzing trace with hash 612181406, now seen corresponding path program 1 times [2024-12-02 07:47:32,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:32,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850016420] [2024-12-02 07:47:32,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:32,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:33,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:33,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850016420] [2024-12-02 07:47:33,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850016420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:33,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:33,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:47:33,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495570301] [2024-12-02 07:47:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:33,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:47:33,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:33,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:47:33,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:47:33,096 INFO L87 Difference]: Start difference. First operand 363 states and 539 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:33,135 INFO L93 Difference]: Finished difference Result 686 states and 1019 transitions. [2024-12-02 07:47:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:47:33,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-12-02 07:47:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:33,137 INFO L225 Difference]: With dead ends: 686 [2024-12-02 07:47:33,137 INFO L226 Difference]: Without dead ends: 365 [2024-12-02 07:47:33,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:47:33,139 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:33,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-12-02 07:47:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-12-02 07:47:33,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4862637362637363) internal successors, (541), 364 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 541 transitions. [2024-12-02 07:47:33,153 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 541 transitions. Word has length 53 [2024-12-02 07:47:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:33,153 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 541 transitions. [2024-12-02 07:47:33,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:33,154 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 541 transitions. [2024-12-02 07:47:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-12-02 07:47:33,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:33,155 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:33,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:47:33,155 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:33,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1588325794, now seen corresponding path program 1 times [2024-12-02 07:47:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:33,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375284534] [2024-12-02 07:47:33,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:33,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:33,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:33,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375284534] [2024-12-02 07:47:33,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375284534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:33,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:33,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:47:33,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183857149] [2024-12-02 07:47:33,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:33,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:47:33,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:33,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:47:33,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:33,444 INFO L87 Difference]: Start difference. First operand 365 states and 541 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:33,497 INFO L93 Difference]: Finished difference Result 718 states and 1065 transitions. [2024-12-02 07:47:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:47:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-12-02 07:47:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:33,499 INFO L225 Difference]: With dead ends: 718 [2024-12-02 07:47:33,499 INFO L226 Difference]: Without dead ends: 395 [2024-12-02 07:47:33,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:33,500 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 28 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:33,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2116 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-12-02 07:47:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-12-02 07:47:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.484771573604061) internal successors, (585), 394 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 585 transitions. [2024-12-02 07:47:33,510 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 585 transitions. Word has length 54 [2024-12-02 07:47:33,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:33,511 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 585 transitions. [2024-12-02 07:47:33,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 585 transitions. [2024-12-02 07:47:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 07:47:33,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:33,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:33,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:47:33,513 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:33,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:33,513 INFO L85 PathProgramCache]: Analyzing trace with hash 111431526, now seen corresponding path program 1 times [2024-12-02 07:47:33,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:33,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198137241] [2024-12-02 07:47:33,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:33,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:34,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:34,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198137241] [2024-12-02 07:47:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198137241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:34,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:34,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:47:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164768235] [2024-12-02 07:47:34,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:34,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:47:34,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:34,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:47:34,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:34,011 INFO L87 Difference]: Start difference. First operand 395 states and 585 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:34,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:34,128 INFO L93 Difference]: Finished difference Result 758 states and 1123 transitions. [2024-12-02 07:47:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:47:34,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-12-02 07:47:34,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:34,131 INFO L225 Difference]: With dead ends: 758 [2024-12-02 07:47:34,131 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 07:47:34,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:47:34,132 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 501 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:34,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 2614 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:47:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 07:47:34,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2024-12-02 07:47:34,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.4825) internal successors, (593), 400 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 593 transitions. [2024-12-02 07:47:34,143 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 593 transitions. Word has length 55 [2024-12-02 07:47:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:34,143 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 593 transitions. [2024-12-02 07:47:34,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 593 transitions. [2024-12-02 07:47:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 07:47:34,144 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:34,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:34,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:47:34,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:34,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:34,145 INFO L85 PathProgramCache]: Analyzing trace with hash 273603503, now seen corresponding path program 1 times [2024-12-02 07:47:34,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:34,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278376341] [2024-12-02 07:47:34,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:34,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:34,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:34,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278376341] [2024-12-02 07:47:34,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278376341] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:34,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:47:34,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572493451] [2024-12-02 07:47:34,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:34,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:47:34,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:34,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:47:34,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:47:34,571 INFO L87 Difference]: Start difference. First operand 401 states and 593 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:34,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:34,698 INFO L93 Difference]: Finished difference Result 782 states and 1158 transitions. [2024-12-02 07:47:34,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:47:34,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-12-02 07:47:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:34,700 INFO L225 Difference]: With dead ends: 782 [2024-12-02 07:47:34,701 INFO L226 Difference]: Without dead ends: 423 [2024-12-02 07:47:34,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:47:34,702 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 515 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:34,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 3140 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:47:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-02 07:47:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2024-12-02 07:47:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 418 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:34,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 617 transitions. [2024-12-02 07:47:34,714 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 617 transitions. Word has length 56 [2024-12-02 07:47:34,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:34,715 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 617 transitions. [2024-12-02 07:47:34,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 617 transitions. [2024-12-02 07:47:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 07:47:34,715 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:34,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:34,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:47:34,716 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:34,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash 4551560, now seen corresponding path program 1 times [2024-12-02 07:47:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:34,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411543311] [2024-12-02 07:47:34,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:34,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:35,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:35,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411543311] [2024-12-02 07:47:35,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411543311] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:35,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:35,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:47:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808719776] [2024-12-02 07:47:35,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:35,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:47:35,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:35,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:47:35,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:35,061 INFO L87 Difference]: Start difference. First operand 419 states and 617 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:35,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:35,407 INFO L93 Difference]: Finished difference Result 810 states and 1191 transitions. [2024-12-02 07:47:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:47:35,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-12-02 07:47:35,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:35,409 INFO L225 Difference]: With dead ends: 810 [2024-12-02 07:47:35,410 INFO L226 Difference]: Without dead ends: 433 [2024-12-02 07:47:35,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:47:35,411 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 495 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:35,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2385 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:47:35,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-12-02 07:47:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 419. [2024-12-02 07:47:35,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 418 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 617 transitions. [2024-12-02 07:47:35,423 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 617 transitions. Word has length 56 [2024-12-02 07:47:35,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:35,423 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 617 transitions. [2024-12-02 07:47:35,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 617 transitions. [2024-12-02 07:47:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 07:47:35,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:35,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:35,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:47:35,424 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:35,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:35,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1213928041, now seen corresponding path program 1 times [2024-12-02 07:47:35,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:35,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896685231] [2024-12-02 07:47:35,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:36,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:36,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896685231] [2024-12-02 07:47:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896685231] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:36,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:47:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581925860] [2024-12-02 07:47:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:36,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:47:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:36,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:47:36,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:36,197 INFO L87 Difference]: Start difference. First operand 419 states and 617 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:36,334 INFO L93 Difference]: Finished difference Result 804 states and 1184 transitions. [2024-12-02 07:47:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:47:36,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-12-02 07:47:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:36,337 INFO L225 Difference]: With dead ends: 804 [2024-12-02 07:47:36,337 INFO L226 Difference]: Without dead ends: 427 [2024-12-02 07:47:36,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:47:36,339 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 528 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:36,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2107 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:36,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-12-02 07:47:36,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2024-12-02 07:47:36,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 1.4752941176470589) internal successors, (627), 425 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 627 transitions. [2024-12-02 07:47:36,355 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 627 transitions. Word has length 57 [2024-12-02 07:47:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:36,356 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 627 transitions. [2024-12-02 07:47:36,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 627 transitions. [2024-12-02 07:47:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 07:47:36,357 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:36,357 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:36,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:47:36,357 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:36,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1195833884, now seen corresponding path program 1 times [2024-12-02 07:47:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:36,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107672353] [2024-12-02 07:47:36,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:37,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:37,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107672353] [2024-12-02 07:47:37,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107672353] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:37,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:37,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:47:37,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890904893] [2024-12-02 07:47:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:37,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:47:37,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:37,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:47:37,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:47:37,036 INFO L87 Difference]: Start difference. First operand 426 states and 627 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:37,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:37,185 INFO L93 Difference]: Finished difference Result 964 states and 1413 transitions. [2024-12-02 07:47:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:47:37,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-12-02 07:47:37,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:37,189 INFO L225 Difference]: With dead ends: 964 [2024-12-02 07:47:37,189 INFO L226 Difference]: Without dead ends: 580 [2024-12-02 07:47:37,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:37,190 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 793 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:37,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1560 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:47:37,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-12-02 07:47:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 497. [2024-12-02 07:47:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.469758064516129) internal successors, (729), 496 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 729 transitions. [2024-12-02 07:47:37,206 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 729 transitions. Word has length 58 [2024-12-02 07:47:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:37,206 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 729 transitions. [2024-12-02 07:47:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 729 transitions. [2024-12-02 07:47:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 07:47:37,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:37,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:37,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:47:37,207 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:37,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:37,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2071929649, now seen corresponding path program 1 times [2024-12-02 07:47:37,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:37,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767926704] [2024-12-02 07:47:37,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:37,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:37,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767926704] [2024-12-02 07:47:37,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767926704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:37,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:37,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:47:37,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384837053] [2024-12-02 07:47:37,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:37,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:47:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:37,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:47:37,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:37,690 INFO L87 Difference]: Start difference. First operand 497 states and 729 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:37,771 INFO L93 Difference]: Finished difference Result 908 states and 1332 transitions. [2024-12-02 07:47:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:47:37,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-12-02 07:47:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:37,775 INFO L225 Difference]: With dead ends: 908 [2024-12-02 07:47:37,775 INFO L226 Difference]: Without dead ends: 495 [2024-12-02 07:47:37,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:47:37,776 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 523 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:37,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2116 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-12-02 07:47:37,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2024-12-02 07:47:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4676113360323886) internal successors, (725), 494 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 725 transitions. [2024-12-02 07:47:37,792 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 725 transitions. Word has length 58 [2024-12-02 07:47:37,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:37,792 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 725 transitions. [2024-12-02 07:47:37,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:37,793 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 725 transitions. [2024-12-02 07:47:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 07:47:37,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:37,793 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:37,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:47:37,794 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:37,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1833886746, now seen corresponding path program 1 times [2024-12-02 07:47:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:37,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899350483] [2024-12-02 07:47:37,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:38,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:38,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899350483] [2024-12-02 07:47:38,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899350483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:38,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:47:38,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59787480] [2024-12-02 07:47:38,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:38,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:47:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:38,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:47:38,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:38,105 INFO L87 Difference]: Start difference. First operand 495 states and 725 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:38,459 INFO L93 Difference]: Finished difference Result 1171 states and 1719 transitions. [2024-12-02 07:47:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:47:38,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-12-02 07:47:38,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:38,462 INFO L225 Difference]: With dead ends: 1171 [2024-12-02 07:47:38,463 INFO L226 Difference]: Without dead ends: 726 [2024-12-02 07:47:38,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:47:38,464 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 1379 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:38,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1943 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:47:38,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-12-02 07:47:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 460. [2024-12-02 07:47:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.4662309368191722) internal successors, (673), 459 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 673 transitions. [2024-12-02 07:47:38,475 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 673 transitions. Word has length 58 [2024-12-02 07:47:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:38,476 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 673 transitions. [2024-12-02 07:47:38,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 673 transitions. [2024-12-02 07:47:38,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-12-02 07:47:38,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:38,478 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:38,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:47:38,479 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:38,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:38,479 INFO L85 PathProgramCache]: Analyzing trace with hash 321816023, now seen corresponding path program 1 times [2024-12-02 07:47:38,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:38,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21279996] [2024-12-02 07:47:38,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:38,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:39,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:39,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21279996] [2024-12-02 07:47:39,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21279996] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:47:39,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865095816] [2024-12-02 07:47:39,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:39,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:39,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:39,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:47:39,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:47:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:39,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:47:39,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:47:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:40,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:47:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:40,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865095816] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:47:40,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:47:40,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 07:47:40,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890829014] [2024-12-02 07:47:40,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:47:40,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:47:40,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:40,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:47:40,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:47:40,923 INFO L87 Difference]: Start difference. First operand 460 states and 673 transitions. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:41,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:41,368 INFO L93 Difference]: Finished difference Result 1125 states and 1646 transitions. [2024-12-02 07:47:41,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:47:41,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-12-02 07:47:41,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:41,371 INFO L225 Difference]: With dead ends: 1125 [2024-12-02 07:47:41,371 INFO L226 Difference]: Without dead ends: 477 [2024-12-02 07:47:41,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:47:41,372 INFO L435 NwaCegarLoop]: 543 mSDtfsCounter, 2116 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:41,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 1950 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:47:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-12-02 07:47:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 475. [2024-12-02 07:47:41,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.4535864978902953) internal successors, (689), 474 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 689 transitions. [2024-12-02 07:47:41,385 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 689 transitions. Word has length 217 [2024-12-02 07:47:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:41,385 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 689 transitions. [2024-12-02 07:47:41,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 689 transitions. [2024-12-02 07:47:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-12-02 07:47:41,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:41,389 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:41,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:47:41,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:41,590 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:41,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:41,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1759421432, now seen corresponding path program 1 times [2024-12-02 07:47:41,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:41,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224988445] [2024-12-02 07:47:41,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:41,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:42,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:42,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:42,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224988445] [2024-12-02 07:47:42,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224988445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:42,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:42,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:47:42,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499486832] [2024-12-02 07:47:42,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:42,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:47:42,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:42,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:47:42,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:47:42,398 INFO L87 Difference]: Start difference. First operand 475 states and 689 transitions. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:42,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:42,771 INFO L93 Difference]: Finished difference Result 1156 states and 1689 transitions. [2024-12-02 07:47:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:47:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-12-02 07:47:42,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:42,774 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 07:47:42,774 INFO L226 Difference]: Without dead ends: 773 [2024-12-02 07:47:42,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:47:42,775 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 1528 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:42,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1427 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:47:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-12-02 07:47:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 727. [2024-12-02 07:47:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.4683195592286502) internal successors, (1066), 726 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1066 transitions. [2024-12-02 07:47:42,790 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1066 transitions. Word has length 218 [2024-12-02 07:47:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:42,790 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1066 transitions. [2024-12-02 07:47:42,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1066 transitions. [2024-12-02 07:47:42,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-12-02 07:47:42,792 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:42,793 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:42,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:47:42,793 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:42,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:42,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1060257666, now seen corresponding path program 1 times [2024-12-02 07:47:42,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:42,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506198495] [2024-12-02 07:47:42,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:42,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:43,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:43,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506198495] [2024-12-02 07:47:43,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506198495] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:43,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:43,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:47:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325020541] [2024-12-02 07:47:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:43,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:47:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:43,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:47:43,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:47:43,516 INFO L87 Difference]: Start difference. First operand 727 states and 1066 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:43,889 INFO L93 Difference]: Finished difference Result 1360 states and 2003 transitions. [2024-12-02 07:47:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:47:43,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-12-02 07:47:43,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:43,892 INFO L225 Difference]: With dead ends: 1360 [2024-12-02 07:47:43,892 INFO L226 Difference]: Without dead ends: 727 [2024-12-02 07:47:43,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:43,893 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 599 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:43,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1125 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:47:43,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-12-02 07:47:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2024-12-02 07:47:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.4669421487603307) internal successors, (1065), 726 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1065 transitions. [2024-12-02 07:47:43,905 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1065 transitions. Word has length 219 [2024-12-02 07:47:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:43,905 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1065 transitions. [2024-12-02 07:47:43,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1065 transitions. [2024-12-02 07:47:43,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-12-02 07:47:43,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:43,908 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:43,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:47:43,908 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:43,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:43,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1786280910, now seen corresponding path program 1 times [2024-12-02 07:47:43,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:43,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958369770] [2024-12-02 07:47:43,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:43,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:44,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:44,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958369770] [2024-12-02 07:47:44,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958369770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:44,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:44,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:47:44,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890780706] [2024-12-02 07:47:44,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:44,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:47:44,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:44,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:47:44,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:47:44,924 INFO L87 Difference]: Start difference. First operand 727 states and 1065 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:45,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:45,471 INFO L93 Difference]: Finished difference Result 1112 states and 1631 transitions. [2024-12-02 07:47:45,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:47:45,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2024-12-02 07:47:45,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:45,475 INFO L225 Difference]: With dead ends: 1112 [2024-12-02 07:47:45,476 INFO L226 Difference]: Without dead ends: 729 [2024-12-02 07:47:45,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:47:45,477 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 1223 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:45,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1124 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:47:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-12-02 07:47:45,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 728. [2024-12-02 07:47:45,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 1.4662998624484183) internal successors, (1066), 727 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1066 transitions. [2024-12-02 07:47:45,502 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1066 transitions. Word has length 220 [2024-12-02 07:47:45,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:45,502 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 1066 transitions. [2024-12-02 07:47:45,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1066 transitions. [2024-12-02 07:47:45,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-12-02 07:47:45,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:45,506 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:45,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:47:45,507 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:45,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:45,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1803128783, now seen corresponding path program 1 times [2024-12-02 07:47:45,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:45,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344531411] [2024-12-02 07:47:45,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:45,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:46,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:46,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344531411] [2024-12-02 07:47:46,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344531411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:46,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:46,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:47:46,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964855972] [2024-12-02 07:47:46,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:46,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:47:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:46,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:47:46,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:47:46,704 INFO L87 Difference]: Start difference. First operand 728 states and 1066 transitions. Second operand has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:47,560 INFO L93 Difference]: Finished difference Result 1481 states and 2173 transitions. [2024-12-02 07:47:47,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:47:47,560 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-12-02 07:47:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:47,564 INFO L225 Difference]: With dead ends: 1481 [2024-12-02 07:47:47,564 INFO L226 Difference]: Without dead ends: 1098 [2024-12-02 07:47:47,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:47:47,565 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 814 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:47,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 3396 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:47:47,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-12-02 07:47:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 732. [2024-12-02 07:47:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-12-02 07:47:47,579 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 221 [2024-12-02 07:47:47,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:47,579 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-12-02 07:47:47,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:47,580 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-12-02 07:47:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-02 07:47:47,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:47,582 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:47,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:47:47,582 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:47,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:47,582 INFO L85 PathProgramCache]: Analyzing trace with hash -570264786, now seen corresponding path program 1 times [2024-12-02 07:47:47,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:47,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189977680] [2024-12-02 07:47:47,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:47,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:48,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:48,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189977680] [2024-12-02 07:47:48,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189977680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:48,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:48,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:47:48,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827257304] [2024-12-02 07:47:48,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:48,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:47:48,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:48,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:47:48,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:47:48,355 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:49,158 INFO L93 Difference]: Finished difference Result 1489 states and 2181 transitions. [2024-12-02 07:47:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:47:49,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-12-02 07:47:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:49,161 INFO L225 Difference]: With dead ends: 1489 [2024-12-02 07:47:49,161 INFO L226 Difference]: Without dead ends: 1102 [2024-12-02 07:47:49,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:47:49,162 INFO L435 NwaCegarLoop]: 712 mSDtfsCounter, 809 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:49,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 3401 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:47:49,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-12-02 07:47:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 732. [2024-12-02 07:47:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-12-02 07:47:49,181 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 222 [2024-12-02 07:47:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:49,182 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-12-02 07:47:49,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-12-02 07:47:49,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-02 07:47:49,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:49,185 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:49,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:47:49,185 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:49,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:49,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1842957116, now seen corresponding path program 1 times [2024-12-02 07:47:49,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:49,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626915995] [2024-12-02 07:47:49,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:49,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:47:50,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:50,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626915995] [2024-12-02 07:47:50,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626915995] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:47:50,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084961145] [2024-12-02 07:47:50,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:50,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:50,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:50,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:47:50,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:47:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:51,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 07:47:51,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:47:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:51,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:47:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:52,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084961145] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:47:52,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:47:52,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 8] total 19 [2024-12-02 07:47:52,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341308919] [2024-12-02 07:47:52,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:47:52,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:47:52,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:52,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:47:52,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:47:52,564 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:53,617 INFO L93 Difference]: Finished difference Result 1495 states and 2198 transitions. [2024-12-02 07:47:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:47:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-12-02 07:47:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:53,621 INFO L225 Difference]: With dead ends: 1495 [2024-12-02 07:47:53,621 INFO L226 Difference]: Without dead ends: 1108 [2024-12-02 07:47:53,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:47:53,623 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1700 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:53,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 4025 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:47:53,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-12-02 07:47:53,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 732. [2024-12-02 07:47:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:53,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-12-02 07:47:53,642 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 222 [2024-12-02 07:47:53,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:53,642 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-12-02 07:47:53,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:53,643 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-12-02 07:47:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-12-02 07:47:53,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:53,646 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:53,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 07:47:53,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 07:47:53,846 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:53,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:53,847 INFO L85 PathProgramCache]: Analyzing trace with hash 323286701, now seen corresponding path program 1 times [2024-12-02 07:47:53,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:53,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779043149] [2024-12-02 07:47:53,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:54,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:54,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779043149] [2024-12-02 07:47:54,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779043149] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:47:54,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879283354] [2024-12-02 07:47:54,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:54,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:54,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:54,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:47:54,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:47:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:55,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 07:47:55,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:47:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:55,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:47:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:56,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879283354] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:47:56,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:47:56,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-12-02 07:47:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284538203] [2024-12-02 07:47:56,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:47:56,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:47:56,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:56,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:47:56,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:47:56,062 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:56,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:56,825 INFO L93 Difference]: Finished difference Result 1485 states and 2163 transitions. [2024-12-02 07:47:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:47:56,826 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2024-12-02 07:47:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:56,827 INFO L225 Difference]: With dead ends: 1485 [2024-12-02 07:47:56,827 INFO L226 Difference]: Without dead ends: 799 [2024-12-02 07:47:56,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:47:56,829 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 4944 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:56,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4944 Valid, 3364 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:47:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-12-02 07:47:56,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 746. [2024-12-02 07:47:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.457718120805369) internal successors, (1086), 745 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1086 transitions. [2024-12-02 07:47:56,844 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1086 transitions. Word has length 223 [2024-12-02 07:47:56,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:56,844 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1086 transitions. [2024-12-02 07:47:56,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:56,844 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1086 transitions. [2024-12-02 07:47:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-12-02 07:47:56,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:56,851 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:56,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:47:57,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:57,052 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:57,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1493491252, now seen corresponding path program 1 times [2024-12-02 07:47:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:57,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349751714] [2024-12-02 07:47:57,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:57,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:58,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:58,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349751714] [2024-12-02 07:47:58,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349751714] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:47:58,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474272268] [2024-12-02 07:47:58,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:58,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:58,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:58,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:47:58,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:47:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:59,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 07:47:59,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:47:59,907 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:59,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:00,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474272268] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:00,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:00,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-12-02 07:48:00,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647285245] [2024-12-02 07:48:00,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:00,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:48:00,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:00,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:48:00,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:48:00,734 INFO L87 Difference]: Start difference. First operand 746 states and 1086 transitions. Second operand has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:01,341 INFO L93 Difference]: Finished difference Result 1187 states and 1727 transitions. [2024-12-02 07:48:01,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:48:01,341 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2024-12-02 07:48:01,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:01,343 INFO L225 Difference]: With dead ends: 1187 [2024-12-02 07:48:01,343 INFO L226 Difference]: Without dead ends: 800 [2024-12-02 07:48:01,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:48:01,344 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 3252 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3252 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:01,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3252 Valid, 3777 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:48:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-12-02 07:48:01,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2024-12-02 07:48:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4504391468005018) internal successors, (1156), 797 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1156 transitions. [2024-12-02 07:48:01,360 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1156 transitions. Word has length 384 [2024-12-02 07:48:01,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:01,360 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1156 transitions. [2024-12-02 07:48:01,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:01,360 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1156 transitions. [2024-12-02 07:48:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-12-02 07:48:01,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:01,363 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:01,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:48:01,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:01,564 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:01,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash 585240963, now seen corresponding path program 1 times [2024-12-02 07:48:01,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:01,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947423290] [2024-12-02 07:48:01,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:01,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 185 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:02,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:02,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947423290] [2024-12-02 07:48:02,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947423290] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:02,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446418153] [2024-12-02 07:48:02,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:02,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:02,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:02,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:02,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:48:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:04,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:48:04,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:04,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:48:04,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446418153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:04,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:48:04,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 07:48:04,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394237224] [2024-12-02 07:48:04,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:04,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:04,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:04,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:04,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:48:04,885 INFO L87 Difference]: Start difference. First operand 798 states and 1156 transitions. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:05,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:05,281 INFO L93 Difference]: Finished difference Result 1545 states and 2247 transitions. [2024-12-02 07:48:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:05,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-12-02 07:48:05,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:05,284 INFO L225 Difference]: With dead ends: 1545 [2024-12-02 07:48:05,284 INFO L226 Difference]: Without dead ends: 1158 [2024-12-02 07:48:05,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:48:05,286 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 964 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:05,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1519 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:48:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-12-02 07:48:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2024-12-02 07:48:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.451082251082251) internal successors, (1676), 1155 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1676 transitions. [2024-12-02 07:48:05,306 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1676 transitions. Word has length 385 [2024-12-02 07:48:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:05,306 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1676 transitions. [2024-12-02 07:48:05,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1676 transitions. [2024-12-02 07:48:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-12-02 07:48:05,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:05,310 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:05,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 07:48:05,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 07:48:05,511 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:05,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:05,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1311956855, now seen corresponding path program 1 times [2024-12-02 07:48:05,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:05,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534953769] [2024-12-02 07:48:05,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:05,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 187 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:06,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534953769] [2024-12-02 07:48:06,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534953769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727419410] [2024-12-02 07:48:06,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:06,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:06,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:06,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:06,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:48:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:08,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 07:48:08,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 187 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:08,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 186 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:09,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727419410] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:09,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:09,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 15 [2024-12-02 07:48:09,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447693723] [2024-12-02 07:48:09,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:09,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:48:09,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:09,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:48:09,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:48:09,447 INFO L87 Difference]: Start difference. First operand 1156 states and 1676 transitions. Second operand has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:10,424 INFO L93 Difference]: Finished difference Result 1851 states and 2697 transitions. [2024-12-02 07:48:10,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:48:10,425 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-12-02 07:48:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:10,428 INFO L225 Difference]: With dead ends: 1851 [2024-12-02 07:48:10,428 INFO L226 Difference]: Without dead ends: 1160 [2024-12-02 07:48:10,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:48:10,432 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1724 mSDsluCounter, 3698 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:10,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 4069 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:48:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-12-02 07:48:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1158. [2024-12-02 07:48:10,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1157 states have (on average 1.4503025064822819) internal successors, (1678), 1157 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1678 transitions. [2024-12-02 07:48:10,446 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1678 transitions. Word has length 385 [2024-12-02 07:48:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:10,446 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1678 transitions. [2024-12-02 07:48:10,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1678 transitions. [2024-12-02 07:48:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-12-02 07:48:10,448 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:10,448 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:10,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:48:10,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 07:48:10,649 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:10,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:10,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1519051669, now seen corresponding path program 1 times [2024-12-02 07:48:10,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:10,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950368392] [2024-12-02 07:48:10,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:10,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 81 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:12,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:12,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950368392] [2024-12-02 07:48:12,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950368392] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:12,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782208076] [2024-12-02 07:48:12,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:12,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:12,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:12,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:12,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:48:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:14,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 07:48:14,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 184 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:48:14,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 213 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:48:15,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782208076] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:15,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:15,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 23 [2024-12-02 07:48:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668933928] [2024-12-02 07:48:15,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:15,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 07:48:15,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:15,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 07:48:15,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:48:15,169 INFO L87 Difference]: Start difference. First operand 1158 states and 1678 transitions. Second operand has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:17,618 INFO L93 Difference]: Finished difference Result 3459 states and 5025 transitions. [2024-12-02 07:48:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 07:48:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2024-12-02 07:48:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:17,623 INFO L225 Difference]: With dead ends: 3459 [2024-12-02 07:48:17,623 INFO L226 Difference]: Without dead ends: 2404 [2024-12-02 07:48:17,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=436, Invalid=1820, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 07:48:17,625 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 3095 mSDsluCounter, 9095 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 4331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:17,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3095 Valid, 9871 Invalid, 4331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4327 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:48:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2024-12-02 07:48:17,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1638. [2024-12-02 07:48:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1637 states have (on average 1.4410507025045816) internal successors, (2359), 1637 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2359 transitions. [2024-12-02 07:48:17,642 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2359 transitions. Word has length 386 [2024-12-02 07:48:17,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:17,643 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 2359 transitions. [2024-12-02 07:48:17,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:17,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2359 transitions. [2024-12-02 07:48:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 07:48:17,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:17,645 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:17,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 07:48:17,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 07:48:17,846 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:17,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:17,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1862927634, now seen corresponding path program 1 times [2024-12-02 07:48:17,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:17,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553791980] [2024-12-02 07:48:17,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553791980] [2024-12-02 07:48:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553791980] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594707102] [2024-12-02 07:48:19,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:19,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:19,887 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:19,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 07:48:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:21,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 07:48:21,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:22,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:22,895 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:22,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594707102] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:22,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:22,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 24 [2024-12-02 07:48:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901750474] [2024-12-02 07:48:22,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:22,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 07:48:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:22,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 07:48:22,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:48:22,897 INFO L87 Difference]: Start difference. First operand 1638 states and 2359 transitions. Second operand has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:26,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:26,072 INFO L93 Difference]: Finished difference Result 3977 states and 5708 transitions. [2024-12-02 07:48:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 07:48:26,073 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-12-02 07:48:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:26,078 INFO L225 Difference]: With dead ends: 3977 [2024-12-02 07:48:26,078 INFO L226 Difference]: Without dead ends: 2871 [2024-12-02 07:48:26,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 777 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=362, Invalid=2290, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 07:48:26,079 INFO L435 NwaCegarLoop]: 1387 mSDtfsCounter, 2546 mSDsluCounter, 15126 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 5739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:26,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2546 Valid, 16513 Invalid, 5739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5736 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 07:48:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2024-12-02 07:48:26,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1626. [2024-12-02 07:48:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1625 states have (on average 1.4443076923076923) internal successors, (2347), 1625 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2347 transitions. [2024-12-02 07:48:26,099 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2347 transitions. Word has length 389 [2024-12-02 07:48:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:26,100 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2347 transitions. [2024-12-02 07:48:26,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2347 transitions. [2024-12-02 07:48:26,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 07:48:26,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:26,104 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:26,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 07:48:26,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:26,304 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:26,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash -420484277, now seen corresponding path program 1 times [2024-12-02 07:48:26,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:26,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928259387] [2024-12-02 07:48:26,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 07:48:29,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928259387] [2024-12-02 07:48:29,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928259387] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078337937] [2024-12-02 07:48:29,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:29,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:29,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:29,679 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:29,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 07:48:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:31,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-02 07:48:31,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 163 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 07:48:32,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 181 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 07:48:34,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078337937] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:34,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:34,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 16] total 37 [2024-12-02 07:48:34,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091836125] [2024-12-02 07:48:34,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:34,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 07:48:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:34,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 07:48:34,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1096, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:48:34,064 INFO L87 Difference]: Start difference. First operand 1626 states and 2347 transitions. Second operand has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:37,166 INFO L93 Difference]: Finished difference Result 7637 states and 11058 transitions. [2024-12-02 07:48:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-02 07:48:37,167 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-12-02 07:48:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:37,176 INFO L225 Difference]: With dead ends: 7637 [2024-12-02 07:48:37,177 INFO L226 Difference]: Without dead ends: 6175 [2024-12-02 07:48:37,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 750 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1489 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=746, Invalid=4804, Unknown=0, NotChecked=0, Total=5550 [2024-12-02 07:48:37,179 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 6229 mSDsluCounter, 7455 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6229 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 4305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:37,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6229 Valid, 7883 Invalid, 4305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 07:48:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2024-12-02 07:48:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 2685. [2024-12-02 07:48:37,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2684 states have (on average 1.4485842026825633) internal successors, (3888), 2684 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3888 transitions. [2024-12-02 07:48:37,213 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3888 transitions. Word has length 389 [2024-12-02 07:48:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:37,214 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3888 transitions. [2024-12-02 07:48:37,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:37,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3888 transitions. [2024-12-02 07:48:37,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 07:48:37,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:37,218 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:37,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 07:48:37,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:37,419 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:37,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1296580042, now seen corresponding path program 1 times [2024-12-02 07:48:37,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:37,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173176617] [2024-12-02 07:48:37,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-12-02 07:48:39,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:39,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173176617] [2024-12-02 07:48:39,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173176617] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:39,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560300436] [2024-12-02 07:48:39,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:39,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:39,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:39,551 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:39,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 07:48:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:40,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 07:48:40,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 182 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 07:48:42,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:42,813 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 81 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:42,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560300436] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:42,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:42,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 28 [2024-12-02 07:48:42,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205289271] [2024-12-02 07:48:42,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:42,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 07:48:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:42,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 07:48:42,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:48:42,815 INFO L87 Difference]: Start difference. First operand 2685 states and 3888 transitions. Second operand has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:46,299 INFO L93 Difference]: Finished difference Result 7838 states and 11349 transitions. [2024-12-02 07:48:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-12-02 07:48:46,300 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-12-02 07:48:46,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:46,311 INFO L225 Difference]: With dead ends: 7838 [2024-12-02 07:48:46,312 INFO L226 Difference]: Without dead ends: 5212 [2024-12-02 07:48:46,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4484 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1816, Invalid=12946, Unknown=0, NotChecked=0, Total=14762 [2024-12-02 07:48:46,318 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 6638 mSDsluCounter, 6539 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6638 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:46,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6638 Valid, 6950 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:48:46,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2024-12-02 07:48:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 3731. [2024-12-02 07:48:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3730 states have (on average 1.434048257372654) internal successors, (5349), 3730 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5349 transitions. [2024-12-02 07:48:46,381 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5349 transitions. Word has length 389 [2024-12-02 07:48:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:46,381 INFO L471 AbstractCegarLoop]: Abstraction has 3731 states and 5349 transitions. [2024-12-02 07:48:46,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:46,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5349 transitions. [2024-12-02 07:48:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 07:48:46,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:46,387 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:46,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 07:48:46,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 07:48:46,587 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1997869021, now seen corresponding path program 1 times [2024-12-02 07:48:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124094026] [2024-12-02 07:48:46,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-12-02 07:48:50,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:50,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124094026] [2024-12-02 07:48:50,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124094026] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:50,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430955621] [2024-12-02 07:48:50,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:50,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:50,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:50,037 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:50,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 07:48:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:51,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 07:48:51,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:48:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 79 proven. 45 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-12-02 07:48:52,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:48:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 120 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-12-02 07:48:54,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430955621] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:48:54,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:48:54,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 29 [2024-12-02 07:48:54,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153872658] [2024-12-02 07:48:54,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:48:54,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 07:48:54,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:54,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 07:48:54,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:48:54,222 INFO L87 Difference]: Start difference. First operand 3731 states and 5349 transitions. Second operand has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:57,464 INFO L93 Difference]: Finished difference Result 10469 states and 14978 transitions. [2024-12-02 07:48:57,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 07:48:57,464 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-12-02 07:48:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:57,472 INFO L225 Difference]: With dead ends: 10469 [2024-12-02 07:48:57,472 INFO L226 Difference]: Without dead ends: 6828 [2024-12-02 07:48:57,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=337, Invalid=2315, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 07:48:57,476 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 1893 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 7174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 9776 SdHoareTripleChecker+Invalid, 7177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:57,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 9776 Invalid, 7177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7174 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 07:48:57,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2024-12-02 07:48:57,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 5113. [2024-12-02 07:48:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 1.425078247261346) internal successors, (7285), 5112 states have internal predecessors, (7285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 7285 transitions. [2024-12-02 07:48:57,526 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 7285 transitions. Word has length 389 [2024-12-02 07:48:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:57,527 INFO L471 AbstractCegarLoop]: Abstraction has 5113 states and 7285 transitions. [2024-12-02 07:48:57,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:48:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 7285 transitions. [2024-12-02 07:48:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 07:48:57,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:57,531 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:57,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 07:48:57,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:57,731 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:57,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:57,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1559369988, now seen corresponding path program 1 times [2024-12-02 07:48:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:57,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449471680] [2024-12-02 07:48:57,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 07:48:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449471680] [2024-12-02 07:48:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449471680] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:48:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334998477] [2024-12-02 07:48:59,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:59,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:48:59,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:59,513 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:48:59,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 07:49:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:01,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 07:49:01,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 07:49:01,282 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:49:01,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334998477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:01,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:49:01,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-12-02 07:49:01,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645730419] [2024-12-02 07:49:01,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:01,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:49:01,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:01,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:49:01,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:49:01,284 INFO L87 Difference]: Start difference. First operand 5113 states and 7285 transitions. Second operand has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:01,377 INFO L93 Difference]: Finished difference Result 10086 states and 14380 transitions. [2024-12-02 07:49:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:49:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-12-02 07:49:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:01,387 INFO L225 Difference]: With dead ends: 10086 [2024-12-02 07:49:01,387 INFO L226 Difference]: Without dead ends: 5138 [2024-12-02 07:49:01,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:49:01,392 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:01,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2525 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:49:01,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5138 states. [2024-12-02 07:49:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5138 to 5138. [2024-12-02 07:49:01,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5138 states, 5137 states have (on average 1.423982869379015) internal successors, (7315), 5137 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5138 states to 5138 states and 7315 transitions. [2024-12-02 07:49:01,454 INFO L78 Accepts]: Start accepts. Automaton has 5138 states and 7315 transitions. Word has length 390 [2024-12-02 07:49:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:01,455 INFO L471 AbstractCegarLoop]: Abstraction has 5138 states and 7315 transitions. [2024-12-02 07:49:01,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5138 states and 7315 transitions. [2024-12-02 07:49:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 07:49:01,459 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:01,459 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:01,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 07:49:01,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 07:49:01,660 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:01,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash 995509848, now seen corresponding path program 1 times [2024-12-02 07:49:01,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:01,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757289830] [2024-12-02 07:49:01,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:01,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-12-02 07:49:03,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757289830] [2024-12-02 07:49:03,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757289830] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:49:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876709996] [2024-12-02 07:49:03,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:03,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:03,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:03,411 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:49:03,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 07:49:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:04,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 07:49:04,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 24 proven. 185 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 07:49:06,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:49:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-12-02 07:49:07,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876709996] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:49:07,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:49:07,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 20 [2024-12-02 07:49:07,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514020271] [2024-12-02 07:49:07,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:49:07,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 07:49:07,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:07,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 07:49:07,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:49:07,106 INFO L87 Difference]: Start difference. First operand 5138 states and 7315 transitions. Second operand has 20 states, 20 states have (on average 40.95) internal successors, (819), 20 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:08,266 INFO L93 Difference]: Finished difference Result 10569 states and 15076 transitions. [2024-12-02 07:49:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:49:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 40.95) internal successors, (819), 20 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-12-02 07:49:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:08,274 INFO L225 Difference]: With dead ends: 10569 [2024-12-02 07:49:08,274 INFO L226 Difference]: Without dead ends: 5501 [2024-12-02 07:49:08,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 766 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:49:08,278 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 1182 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:08,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 3516 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:49:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5501 states. [2024-12-02 07:49:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5501 to 5253. [2024-12-02 07:49:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 1.4278370144706778) internal successors, (7499), 5252 states have internal predecessors, (7499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 7499 transitions. [2024-12-02 07:49:08,339 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 7499 transitions. Word has length 390 [2024-12-02 07:49:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:08,340 INFO L471 AbstractCegarLoop]: Abstraction has 5253 states and 7499 transitions. [2024-12-02 07:49:08,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 40.95) internal successors, (819), 20 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 7499 transitions. [2024-12-02 07:49:08,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 07:49:08,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:08,344 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:08,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 07:49:08,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 07:49:08,545 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:08,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash 731179455, now seen corresponding path program 1 times [2024-12-02 07:49:08,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:08,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576291384] [2024-12-02 07:49:08,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:08,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-12-02 07:49:10,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576291384] [2024-12-02 07:49:10,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576291384] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:49:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646407680] [2024-12-02 07:49:10,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:10,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:10,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:10,697 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:49:10,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 07:49:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:12,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 07:49:12,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-12-02 07:49:12,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:49:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-12-02 07:49:13,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646407680] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:49:13,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:49:13,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 15 [2024-12-02 07:49:13,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259728685] [2024-12-02 07:49:13,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:49:13,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:49:13,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:13,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:49:13,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:49:13,099 INFO L87 Difference]: Start difference. First operand 5253 states and 7499 transitions. Second operand has 15 states, 15 states have (on average 34.333333333333336) internal successors, (515), 15 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:13,674 INFO L93 Difference]: Finished difference Result 10839 states and 15503 transitions. [2024-12-02 07:49:13,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:49:13,675 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 34.333333333333336) internal successors, (515), 15 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-12-02 07:49:13,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:13,681 INFO L225 Difference]: With dead ends: 10839 [2024-12-02 07:49:13,681 INFO L226 Difference]: Without dead ends: 5659 [2024-12-02 07:49:13,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:49:13,686 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 833 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:13,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 2617 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:49:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5659 states. [2024-12-02 07:49:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5659 to 5653. [2024-12-02 07:49:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5653 states, 5652 states have (on average 1.4134819532908705) internal successors, (7989), 5652 states have internal predecessors, (7989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5653 states to 5653 states and 7989 transitions. [2024-12-02 07:49:13,757 INFO L78 Accepts]: Start accepts. Automaton has 5653 states and 7989 transitions. Word has length 390 [2024-12-02 07:49:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:13,757 INFO L471 AbstractCegarLoop]: Abstraction has 5653 states and 7989 transitions. [2024-12-02 07:49:13,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.333333333333336) internal successors, (515), 15 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5653 states and 7989 transitions. [2024-12-02 07:49:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 07:49:13,762 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:13,762 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:13,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 07:49:13,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:13,962 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:13,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:13,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1016970421, now seen corresponding path program 1 times [2024-12-02 07:49:13,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:13,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306236531] [2024-12-02 07:49:13,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:13,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 88 proven. 130 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 07:49:16,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:16,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306236531] [2024-12-02 07:49:16,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306236531] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:49:16,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572026205] [2024-12-02 07:49:16,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:16,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:16,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:16,670 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:49:16,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 07:49:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:18,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:49:18,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:18,844 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 212 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:49:18,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:49:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 60 proven. 159 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:49:20,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572026205] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:49:20,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:49:20,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 16 [2024-12-02 07:49:20,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202860115] [2024-12-02 07:49:20,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:49:20,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:49:20,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:20,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:49:20,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:49:20,576 INFO L87 Difference]: Start difference. First operand 5653 states and 7989 transitions. Second operand has 16 states, 16 states have (on average 56.375) internal successors, (902), 16 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:21,547 INFO L93 Difference]: Finished difference Result 9750 states and 13834 transitions. [2024-12-02 07:49:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:49:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 56.375) internal successors, (902), 16 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-12-02 07:49:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:21,553 INFO L225 Difference]: With dead ends: 9750 [2024-12-02 07:49:21,553 INFO L226 Difference]: Without dead ends: 5655 [2024-12-02 07:49:21,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 774 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:49:21,557 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 2453 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:21,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 4251 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:49:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2024-12-02 07:49:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5653. [2024-12-02 07:49:21,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5653 states, 5652 states have (on average 1.41206652512385) internal successors, (7981), 5652 states have internal predecessors, (7981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5653 states to 5653 states and 7981 transitions. [2024-12-02 07:49:21,642 INFO L78 Accepts]: Start accepts. Automaton has 5653 states and 7981 transitions. Word has length 390 [2024-12-02 07:49:21,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:21,643 INFO L471 AbstractCegarLoop]: Abstraction has 5653 states and 7981 transitions. [2024-12-02 07:49:21,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 56.375) internal successors, (902), 16 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:21,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5653 states and 7981 transitions. [2024-12-02 07:49:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 07:49:21,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:21,651 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:21,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 07:49:21,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:21,852 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:21,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1059279769, now seen corresponding path program 1 times [2024-12-02 07:49:21,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:21,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091512597] [2024-12-02 07:49:21,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:21,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:29,471 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 94 proven. 12 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-12-02 07:49:29,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:29,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091512597] [2024-12-02 07:49:29,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091512597] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:49:29,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590666819] [2024-12-02 07:49:29,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:29,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:29,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:29,473 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:49:29,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 07:49:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:32,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 07:49:32,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:32,711 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:49:32,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:49:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:49:33,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590666819] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:49:33,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:49:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 10] total 33 [2024-12-02 07:49:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586819586] [2024-12-02 07:49:33,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:49:33,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 07:49:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:33,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 07:49:33,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 07:49:33,231 INFO L87 Difference]: Start difference. First operand 5653 states and 7981 transitions. Second operand has 33 states, 33 states have (on average 25.09090909090909) internal successors, (828), 33 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:34,015 INFO L93 Difference]: Finished difference Result 10420 states and 14727 transitions. [2024-12-02 07:49:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 07:49:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 25.09090909090909) internal successors, (828), 33 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-12-02 07:49:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:34,020 INFO L225 Difference]: With dead ends: 10420 [2024-12-02 07:49:34,020 INFO L226 Difference]: Without dead ends: 6325 [2024-12-02 07:49:34,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 769 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 07:49:34,023 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 1446 mSDsluCounter, 11563 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 12219 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:34,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 12219 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:49:34,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6325 states. [2024-12-02 07:49:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6325 to 6132. [2024-12-02 07:49:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6132 states, 6131 states have (on average 1.407274506605774) internal successors, (8628), 6131 states have internal predecessors, (8628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 8628 transitions. [2024-12-02 07:49:34,106 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 8628 transitions. Word has length 390 [2024-12-02 07:49:34,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:34,107 INFO L471 AbstractCegarLoop]: Abstraction has 6132 states and 8628 transitions. [2024-12-02 07:49:34,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 25.09090909090909) internal successors, (828), 33 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 8628 transitions. [2024-12-02 07:49:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:49:34,114 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:34,114 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:34,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 07:49:34,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:34,315 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:34,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash 107943465, now seen corresponding path program 1 times [2024-12-02 07:49:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:34,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488517615] [2024-12-02 07:49:34,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:34,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:49:34,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:34,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488517615] [2024-12-02 07:49:34,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488517615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:34,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:34,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:49:34,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997892521] [2024-12-02 07:49:34,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:34,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:49:34,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:34,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:49:34,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:49:34,988 INFO L87 Difference]: Start difference. First operand 6132 states and 8628 transitions. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:35,260 INFO L93 Difference]: Finished difference Result 12143 states and 17095 transitions. [2024-12-02 07:49:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:49:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:49:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:35,265 INFO L225 Difference]: With dead ends: 12143 [2024-12-02 07:49:35,265 INFO L226 Difference]: Without dead ends: 6150 [2024-12-02 07:49:35,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:49:35,269 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:35,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1139 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:49:35,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2024-12-02 07:49:35,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6150. [2024-12-02 07:49:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6150 states, 6149 states have (on average 1.4060822898032201) internal successors, (8646), 6149 states have internal predecessors, (8646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:35,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8646 transitions. [2024-12-02 07:49:35,329 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8646 transitions. Word has length 391 [2024-12-02 07:49:35,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:35,330 INFO L471 AbstractCegarLoop]: Abstraction has 6150 states and 8646 transitions. [2024-12-02 07:49:35,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:35,330 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8646 transitions. [2024-12-02 07:49:35,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:49:35,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:35,336 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:35,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 07:49:35,336 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:35,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:35,336 INFO L85 PathProgramCache]: Analyzing trace with hash -987847485, now seen corresponding path program 1 times [2024-12-02 07:49:35,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:35,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353267502] [2024-12-02 07:49:35,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:35,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 111 proven. 14 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-12-02 07:49:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353267502] [2024-12-02 07:49:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353267502] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:49:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108818591] [2024-12-02 07:49:39,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:39,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:39,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:39,696 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:49:39,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 07:49:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:41,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 07:49:41,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 41 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 07:49:42,612 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:49:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 151 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 07:49:44,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108818591] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:49:44,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:49:44,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 11] total 31 [2024-12-02 07:49:44,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191576316] [2024-12-02 07:49:44,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:49:44,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 07:49:44,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:44,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 07:49:44,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=800, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:49:44,352 INFO L87 Difference]: Start difference. First operand 6150 states and 8646 transitions. Second operand has 31 states, 31 states have (on average 29.322580645161292) internal successors, (909), 31 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:46,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:46,605 INFO L93 Difference]: Finished difference Result 16963 states and 23724 transitions. [2024-12-02 07:49:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 07:49:46,606 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 29.322580645161292) internal successors, (909), 31 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:49:46,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:46,613 INFO L225 Difference]: With dead ends: 16963 [2024-12-02 07:49:46,613 INFO L226 Difference]: Without dead ends: 11477 [2024-12-02 07:49:46,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 766 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 07:49:46,618 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 2272 mSDsluCounter, 7407 mSDsCounter, 0 mSdLazyCounter, 4208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 7889 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:46,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 7889 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4208 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 07:49:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11477 states. [2024-12-02 07:49:46,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11477 to 9021. [2024-12-02 07:49:46,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 9020 states have (on average 1.4070953436807094) internal successors, (12692), 9020 states have internal predecessors, (12692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12692 transitions. [2024-12-02 07:49:46,751 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12692 transitions. Word has length 391 [2024-12-02 07:49:46,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:46,752 INFO L471 AbstractCegarLoop]: Abstraction has 9021 states and 12692 transitions. [2024-12-02 07:49:46,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 29.322580645161292) internal successors, (909), 31 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12692 transitions. [2024-12-02 07:49:46,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:49:46,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:46,759 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:46,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 07:49:46,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 07:49:46,960 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:46,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:46,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1618800146, now seen corresponding path program 1 times [2024-12-02 07:49:46,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:46,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298214894] [2024-12-02 07:49:46,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:46,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 07:49:48,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:48,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298214894] [2024-12-02 07:49:48,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298214894] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:49:48,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743628222] [2024-12-02 07:49:48,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:48,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:48,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:48,547 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:49:48,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 07:49:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:50,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 07:49:50,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:49:51,383 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 32 proven. 178 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 07:49:51,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:49:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 07:49:52,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743628222] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:49:52,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:49:52,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2024-12-02 07:49:52,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796656640] [2024-12-02 07:49:52,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:49:52,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:49:52,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:52,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:49:52,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:49:52,282 INFO L87 Difference]: Start difference. First operand 9021 states and 12692 transitions. Second operand has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:53,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:53,221 INFO L93 Difference]: Finished difference Result 18453 states and 25965 transitions. [2024-12-02 07:49:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:49:53,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:49:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:53,227 INFO L225 Difference]: With dead ends: 18453 [2024-12-02 07:49:53,227 INFO L226 Difference]: Without dead ends: 9515 [2024-12-02 07:49:53,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:49:53,233 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 490 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 3235 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:53,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 3235 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:49:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9515 states. [2024-12-02 07:49:53,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9515 to 9021. [2024-12-02 07:49:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 9020 states have (on average 1.4070953436807094) internal successors, (12692), 9020 states have internal predecessors, (12692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12692 transitions. [2024-12-02 07:49:53,315 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12692 transitions. Word has length 391 [2024-12-02 07:49:53,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:53,315 INFO L471 AbstractCegarLoop]: Abstraction has 9021 states and 12692 transitions. [2024-12-02 07:49:53,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:49:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12692 transitions. [2024-12-02 07:49:53,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:49:53,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:53,321 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:53,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 07:49:53,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:49:53,521 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:53,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1600919676, now seen corresponding path program 1 times [2024-12-02 07:49:53,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:53,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207149785] [2024-12-02 07:49:53,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:53,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 204 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:00,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:00,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207149785] [2024-12-02 07:50:00,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207149785] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:00,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773858019] [2024-12-02 07:50:00,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:00,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:00,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:00,333 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:50:00,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 07:50:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:03,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-02 07:50:03,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:50:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 93 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:04,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:50:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:05,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773858019] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:50:05,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:50:05,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 13] total 44 [2024-12-02 07:50:05,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047973407] [2024-12-02 07:50:05,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:50:05,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-12-02 07:50:05,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:05,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-12-02 07:50:05,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1636, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 07:50:05,451 INFO L87 Difference]: Start difference. First operand 9021 states and 12692 transitions. Second operand has 44 states, 44 states have (on average 25.84090909090909) internal successors, (1137), 44 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:15,654 INFO L93 Difference]: Finished difference Result 34080 states and 48458 transitions. [2024-12-02 07:50:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-12-02 07:50:15,654 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 25.84090909090909) internal successors, (1137), 44 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:50:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:15,664 INFO L225 Difference]: With dead ends: 34080 [2024-12-02 07:50:15,665 INFO L226 Difference]: Without dead ends: 17810 [2024-12-02 07:50:15,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 777 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2470 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1597, Invalid=9115, Unknown=0, NotChecked=0, Total=10712 [2024-12-02 07:50:15,675 INFO L435 NwaCegarLoop]: 1102 mSDtfsCounter, 3362 mSDsluCounter, 28941 mSDsCounter, 0 mSdLazyCounter, 17248 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 30043 SdHoareTripleChecker+Invalid, 17256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:15,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 30043 Invalid, 17256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 17248 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-12-02 07:50:15,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17810 states. [2024-12-02 07:50:15,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17810 to 12123. [2024-12-02 07:50:15,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12123 states, 12122 states have (on average 1.4105758125721828) internal successors, (17099), 12122 states have internal predecessors, (17099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12123 states to 12123 states and 17099 transitions. [2024-12-02 07:50:15,812 INFO L78 Accepts]: Start accepts. Automaton has 12123 states and 17099 transitions. Word has length 391 [2024-12-02 07:50:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:15,812 INFO L471 AbstractCegarLoop]: Abstraction has 12123 states and 17099 transitions. [2024-12-02 07:50:15,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 25.84090909090909) internal successors, (1137), 44 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 12123 states and 17099 transitions. [2024-12-02 07:50:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:50:15,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:15,820 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:15,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 07:50:16,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 07:50:16,020 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:16,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1573197437, now seen corresponding path program 1 times [2024-12-02 07:50:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:16,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907034294] [2024-12-02 07:50:16,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:16,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-02 07:50:17,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:17,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907034294] [2024-12-02 07:50:17,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907034294] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:17,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329500237] [2024-12-02 07:50:17,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:17,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:17,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:17,694 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:50:17,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 07:50:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:19,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 07:50:19,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:50:19,436 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-02 07:50:19,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:50:19,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329500237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:19,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:50:19,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-12-02 07:50:19,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128471170] [2024-12-02 07:50:19,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:19,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:50:19,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:19,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:50:19,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:50:19,438 INFO L87 Difference]: Start difference. First operand 12123 states and 17099 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:19,563 INFO L93 Difference]: Finished difference Result 23491 states and 33122 transitions. [2024-12-02 07:50:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:50:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:50:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:19,572 INFO L225 Difference]: With dead ends: 23491 [2024-12-02 07:50:19,572 INFO L226 Difference]: Without dead ends: 12323 [2024-12-02 07:50:19,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:50:19,578 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:19,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2528 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:50:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12323 states. [2024-12-02 07:50:19,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12323 to 12323. [2024-12-02 07:50:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12323 states, 12322 states have (on average 1.4071579289076448) internal successors, (17339), 12322 states have internal predecessors, (17339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12323 states to 12323 states and 17339 transitions. [2024-12-02 07:50:19,685 INFO L78 Accepts]: Start accepts. Automaton has 12323 states and 17339 transitions. Word has length 391 [2024-12-02 07:50:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:19,686 INFO L471 AbstractCegarLoop]: Abstraction has 12323 states and 17339 transitions. [2024-12-02 07:50:19,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12323 states and 17339 transitions. [2024-12-02 07:50:19,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:50:19,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:19,694 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:19,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 07:50:19,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 07:50:19,894 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:19,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1778819780, now seen corresponding path program 1 times [2024-12-02 07:50:19,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:19,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095752624] [2024-12-02 07:50:19,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-02 07:50:20,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095752624] [2024-12-02 07:50:20,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095752624] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619314935] [2024-12-02 07:50:20,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:20,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:20,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:20,935 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:50:20,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 07:50:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:23,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:50:23,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:50:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-02 07:50:23,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:50:23,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619314935] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:23,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:50:23,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 07:50:23,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834314052] [2024-12-02 07:50:23,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:23,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:50:23,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:23,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:50:23,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:23,724 INFO L87 Difference]: Start difference. First operand 12323 states and 17339 transitions. Second operand has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:23,827 INFO L93 Difference]: Finished difference Result 23123 states and 32628 transitions. [2024-12-02 07:50:23,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:23,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:50:23,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:23,839 INFO L225 Difference]: With dead ends: 23123 [2024-12-02 07:50:23,839 INFO L226 Difference]: Without dead ends: 12395 [2024-12-02 07:50:23,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:23,847 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:23,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:50:23,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2024-12-02 07:50:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 12377. [2024-12-02 07:50:23,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12377 states, 12376 states have (on average 1.406835811247576) internal successors, (17411), 12376 states have internal predecessors, (17411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 17411 transitions. [2024-12-02 07:50:23,975 INFO L78 Accepts]: Start accepts. Automaton has 12377 states and 17411 transitions. Word has length 391 [2024-12-02 07:50:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:23,976 INFO L471 AbstractCegarLoop]: Abstraction has 12377 states and 17411 transitions. [2024-12-02 07:50:23,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 12377 states and 17411 transitions. [2024-12-02 07:50:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:50:23,989 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:23,989 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:24,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 07:50:24,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 07:50:24,189 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:24,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:24,190 INFO L85 PathProgramCache]: Analyzing trace with hash -637766077, now seen corresponding path program 1 times [2024-12-02 07:50:24,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:24,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519188778] [2024-12-02 07:50:24,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:24,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 07:50:26,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:26,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519188778] [2024-12-02 07:50:26,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519188778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:26,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:26,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:50:26,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879404297] [2024-12-02 07:50:26,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:26,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:50:26,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:26,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:50:26,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:26,632 INFO L87 Difference]: Start difference. First operand 12377 states and 17411 transitions. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:26,789 INFO L93 Difference]: Finished difference Result 24591 states and 34620 transitions. [2024-12-02 07:50:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:50:26,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:50:26,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:26,800 INFO L225 Difference]: With dead ends: 24591 [2024-12-02 07:50:26,800 INFO L226 Difference]: Without dead ends: 12467 [2024-12-02 07:50:26,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:26,809 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 347 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:26,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 2476 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:50:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12467 states. [2024-12-02 07:50:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12467 to 12467. [2024-12-02 07:50:26,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12467 states, 12466 states have (on average 1.4053425316861865) internal successors, (17519), 12466 states have internal predecessors, (17519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12467 states to 12467 states and 17519 transitions. [2024-12-02 07:50:26,926 INFO L78 Accepts]: Start accepts. Automaton has 12467 states and 17519 transitions. Word has length 391 [2024-12-02 07:50:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:26,927 INFO L471 AbstractCegarLoop]: Abstraction has 12467 states and 17519 transitions. [2024-12-02 07:50:26,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 12467 states and 17519 transitions. [2024-12-02 07:50:26,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 07:50:26,938 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:26,939 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:26,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 07:50:26,939 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:26,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:26,939 INFO L85 PathProgramCache]: Analyzing trace with hash -704326653, now seen corresponding path program 1 times [2024-12-02 07:50:26,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:26,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655720268] [2024-12-02 07:50:26,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:26,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-02 07:50:31,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:31,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655720268] [2024-12-02 07:50:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655720268] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:50:31,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:50:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:50:31,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889096668] [2024-12-02 07:50:31,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:31,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:50:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:31,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:50:31,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:50:31,039 INFO L87 Difference]: Start difference. First operand 12467 states and 17519 transitions. Second operand has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:31,228 INFO L93 Difference]: Finished difference Result 23443 states and 33032 transitions. [2024-12-02 07:50:31,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:50:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-12-02 07:50:31,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:31,237 INFO L225 Difference]: With dead ends: 23443 [2024-12-02 07:50:31,237 INFO L226 Difference]: Without dead ends: 12589 [2024-12-02 07:50:31,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:50:31,241 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 854 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:31,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2183 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:50:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12589 states. [2024-12-02 07:50:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12589 to 12589. [2024-12-02 07:50:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12589 states, 12588 states have (on average 1.4053860819828408) internal successors, (17691), 12588 states have internal predecessors, (17691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12589 states to 12589 states and 17691 transitions. [2024-12-02 07:50:31,349 INFO L78 Accepts]: Start accepts. Automaton has 12589 states and 17691 transitions. Word has length 391 [2024-12-02 07:50:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:31,350 INFO L471 AbstractCegarLoop]: Abstraction has 12589 states and 17691 transitions. [2024-12-02 07:50:31,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:31,350 INFO L276 IsEmpty]: Start isEmpty. Operand 12589 states and 17691 transitions. [2024-12-02 07:50:31,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:50:31,358 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:31,358 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:31,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 07:50:31,358 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:31,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:31,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1784110174, now seen corresponding path program 1 times [2024-12-02 07:50:31,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:31,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439697643] [2024-12-02 07:50:31,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:31,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 204 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:40,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439697643] [2024-12-02 07:50:40,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439697643] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742418558] [2024-12-02 07:50:40,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:40,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:40,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:40,684 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:50:40,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-12-02 07:50:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:43,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-12-02 07:50:43,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:50:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 188 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:43,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:50:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 217 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:50:44,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742418558] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:50:44,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:50:44,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 16, 11] total 51 [2024-12-02 07:50:44,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660667154] [2024-12-02 07:50:44,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:50:44,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 07:50:44,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:50:44,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 07:50:44,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=2362, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 07:50:44,416 INFO L87 Difference]: Start difference. First operand 12589 states and 17691 transitions. Second operand has 51 states, 51 states have (on average 19.372549019607842) internal successors, (988), 51 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:53,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:53,074 INFO L93 Difference]: Finished difference Result 36108 states and 50203 transitions. [2024-12-02 07:50:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-12-02 07:50:53,074 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 19.372549019607842) internal successors, (988), 51 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:50:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:53,089 INFO L225 Difference]: With dead ends: 36108 [2024-12-02 07:50:53,089 INFO L226 Difference]: Without dead ends: 25692 [2024-12-02 07:50:53,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 786 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4591 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1042, Invalid=14960, Unknown=0, NotChecked=0, Total=16002 [2024-12-02 07:50:53,097 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 3299 mSDsluCounter, 24053 mSDsCounter, 0 mSdLazyCounter, 14572 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 24737 SdHoareTripleChecker+Invalid, 14579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:53,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 24737 Invalid, 14579 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 14572 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-12-02 07:50:53,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2024-12-02 07:50:53,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 16791. [2024-12-02 07:50:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16791 states, 16790 states have (on average 1.39434187016081) internal successors, (23411), 16790 states have internal predecessors, (23411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 23411 transitions. [2024-12-02 07:50:53,272 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 23411 transitions. Word has length 392 [2024-12-02 07:50:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:50:53,273 INFO L471 AbstractCegarLoop]: Abstraction has 16791 states and 23411 transitions. [2024-12-02 07:50:53,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 19.372549019607842) internal successors, (988), 51 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:50:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 23411 transitions. [2024-12-02 07:50:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:50:53,283 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:50:53,283 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:50:53,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-12-02 07:50:53,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:53,483 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:50:53,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:50:53,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2045986734, now seen corresponding path program 1 times [2024-12-02 07:50:53,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:50:53,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265094461] [2024-12-02 07:50:53,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:53,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:50:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:50:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 115 proven. 10 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-12-02 07:50:59,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:50:59,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265094461] [2024-12-02 07:50:59,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265094461] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:59,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491114296] [2024-12-02 07:50:59,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:50:59,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:50:59,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:50:59,834 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:50:59,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-12-02 07:51:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:02,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 07:51:02,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:51:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 57 proven. 38 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-12-02 07:51:02,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:51:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-12-02 07:51:03,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491114296] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:51:03,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:51:03,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 11] total 37 [2024-12-02 07:51:03,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332710926] [2024-12-02 07:51:03,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:51:03,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 07:51:03,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:03,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 07:51:03,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:51:03,651 INFO L87 Difference]: Start difference. First operand 16791 states and 23411 transitions. Second operand has 37 states, 37 states have (on average 21.18918918918919) internal successors, (784), 37 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:08,254 INFO L93 Difference]: Finished difference Result 46755 states and 64778 transitions. [2024-12-02 07:51:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 07:51:08,254 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 21.18918918918919) internal successors, (784), 37 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:08,272 INFO L225 Difference]: With dead ends: 46755 [2024-12-02 07:51:08,272 INFO L226 Difference]: Without dead ends: 31837 [2024-12-02 07:51:08,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 768 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=743, Invalid=5737, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 07:51:08,282 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 2470 mSDsluCounter, 15026 mSDsCounter, 0 mSdLazyCounter, 8439 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 15634 SdHoareTripleChecker+Invalid, 8444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:08,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 15634 Invalid, 8444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8439 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 07:51:08,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31837 states. [2024-12-02 07:51:08,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31837 to 18381. [2024-12-02 07:51:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18381 states, 18380 states have (on average 1.380032644178455) internal successors, (25365), 18380 states have internal predecessors, (25365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18381 states to 18381 states and 25365 transitions. [2024-12-02 07:51:08,519 INFO L78 Accepts]: Start accepts. Automaton has 18381 states and 25365 transitions. Word has length 392 [2024-12-02 07:51:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:08,519 INFO L471 AbstractCegarLoop]: Abstraction has 18381 states and 25365 transitions. [2024-12-02 07:51:08,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 21.18918918918919) internal successors, (784), 37 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 18381 states and 25365 transitions. [2024-12-02 07:51:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:08,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:08,530 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:08,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-12-02 07:51:08,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-12-02 07:51:08,731 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:08,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:08,731 INFO L85 PathProgramCache]: Analyzing trace with hash 728960281, now seen corresponding path program 1 times [2024-12-02 07:51:08,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:08,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851261443] [2024-12-02 07:51:08,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:08,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:09,826 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-12-02 07:51:09,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:09,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851261443] [2024-12-02 07:51:09,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851261443] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:51:09,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602637005] [2024-12-02 07:51:09,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:09,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:51:09,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:51:09,828 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:51:09,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 07:51:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:11,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:51:11,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:51:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-12-02 07:51:12,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:51:12,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602637005] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:12,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:51:12,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 07:51:12,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561125099] [2024-12-02 07:51:12,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:12,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:51:12,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:12,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:51:12,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:12,012 INFO L87 Difference]: Start difference. First operand 18381 states and 25365 transitions. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:12,214 INFO L93 Difference]: Finished difference Result 34821 states and 48094 transitions. [2024-12-02 07:51:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:51:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:12,224 INFO L225 Difference]: With dead ends: 34821 [2024-12-02 07:51:12,224 INFO L226 Difference]: Without dead ends: 18541 [2024-12-02 07:51:12,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:12,230 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:12,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:51:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18541 states. [2024-12-02 07:51:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18541 to 18501. [2024-12-02 07:51:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18501 states, 18500 states have (on average 1.3797297297297297) internal successors, (25525), 18500 states have internal predecessors, (25525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:12,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18501 states to 18501 states and 25525 transitions. [2024-12-02 07:51:12,422 INFO L78 Accepts]: Start accepts. Automaton has 18501 states and 25525 transitions. Word has length 392 [2024-12-02 07:51:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:12,423 INFO L471 AbstractCegarLoop]: Abstraction has 18501 states and 25525 transitions. [2024-12-02 07:51:12,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:12,423 INFO L276 IsEmpty]: Start isEmpty. Operand 18501 states and 25525 transitions. [2024-12-02 07:51:12,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:12,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:12,434 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:12,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 07:51:12,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:51:12,635 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:12,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:12,635 INFO L85 PathProgramCache]: Analyzing trace with hash 707840114, now seen corresponding path program 1 times [2024-12-02 07:51:12,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:12,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683344862] [2024-12-02 07:51:12,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:12,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-12-02 07:51:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:14,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683344862] [2024-12-02 07:51:14,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683344862] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:14,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:14,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:51:14,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139630260] [2024-12-02 07:51:14,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:14,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:51:14,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:14,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:51:14,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:14,551 INFO L87 Difference]: Start difference. First operand 18501 states and 25525 transitions. Second operand has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:14,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:14,737 INFO L93 Difference]: Finished difference Result 36173 states and 49878 transitions. [2024-12-02 07:51:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:51:14,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:14,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:14,749 INFO L225 Difference]: With dead ends: 36173 [2024-12-02 07:51:14,749 INFO L226 Difference]: Without dead ends: 18701 [2024-12-02 07:51:14,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:14,757 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 346 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:14,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2476 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:51:14,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18701 states. [2024-12-02 07:51:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18701 to 18701. [2024-12-02 07:51:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18701 states, 18700 states have (on average 1.377807486631016) internal successors, (25765), 18700 states have internal predecessors, (25765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 25765 transitions. [2024-12-02 07:51:14,940 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 25765 transitions. Word has length 392 [2024-12-02 07:51:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:14,941 INFO L471 AbstractCegarLoop]: Abstraction has 18701 states and 25765 transitions. [2024-12-02 07:51:14,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 25765 transitions. [2024-12-02 07:51:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:14,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:14,952 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:14,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 07:51:14,952 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:14,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash -336594868, now seen corresponding path program 1 times [2024-12-02 07:51:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:14,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4915327] [2024-12-02 07:51:14,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 07:51:15,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:15,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4915327] [2024-12-02 07:51:15,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4915327] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:15,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:15,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:51:15,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041348968] [2024-12-02 07:51:15,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:15,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:51:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:15,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:51:15,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:51:15,659 INFO L87 Difference]: Start difference. First operand 18701 states and 25765 transitions. Second operand has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:15,990 INFO L93 Difference]: Finished difference Result 36465 states and 50202 transitions. [2024-12-02 07:51:15,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:51:15,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:15,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:16,001 INFO L225 Difference]: With dead ends: 36465 [2024-12-02 07:51:16,001 INFO L226 Difference]: Without dead ends: 18781 [2024-12-02 07:51:16,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:51:16,009 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:16,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1140 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:51:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18781 states. [2024-12-02 07:51:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18781 to 18781. [2024-12-02 07:51:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18781 states, 18780 states have (on average 1.3761980830670926) internal successors, (25845), 18780 states have internal predecessors, (25845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18781 states to 18781 states and 25845 transitions. [2024-12-02 07:51:16,188 INFO L78 Accepts]: Start accepts. Automaton has 18781 states and 25845 transitions. Word has length 392 [2024-12-02 07:51:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:16,189 INFO L471 AbstractCegarLoop]: Abstraction has 18781 states and 25845 transitions. [2024-12-02 07:51:16,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 18781 states and 25845 transitions. [2024-12-02 07:51:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:16,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:16,199 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:16,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 07:51:16,199 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:16,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1799367287, now seen corresponding path program 1 times [2024-12-02 07:51:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:16,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607881102] [2024-12-02 07:51:16,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:18,186 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 07:51:18,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607881102] [2024-12-02 07:51:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607881102] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:51:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618814303] [2024-12-02 07:51:18,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:18,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:51:18,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:51:18,188 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:51:18,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 07:51:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:20,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 07:51:20,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:51:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 07:51:20,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:51:20,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618814303] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:20,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:51:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-12-02 07:51:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123889202] [2024-12-02 07:51:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:20,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:51:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:20,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:51:20,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:51:20,513 INFO L87 Difference]: Start difference. First operand 18781 states and 25845 transitions. Second operand has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:20,706 INFO L93 Difference]: Finished difference Result 37097 states and 51062 transitions. [2024-12-02 07:51:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:51:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:20,717 INFO L225 Difference]: With dead ends: 37097 [2024-12-02 07:51:20,718 INFO L226 Difference]: Without dead ends: 18961 [2024-12-02 07:51:20,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:51:20,726 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:20,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2528 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:51:20,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18961 states. [2024-12-02 07:51:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18961 to 18961. [2024-12-02 07:51:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18961 states, 18960 states have (on average 1.3745253164556963) internal successors, (26061), 18960 states have internal predecessors, (26061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18961 states to 18961 states and 26061 transitions. [2024-12-02 07:51:20,917 INFO L78 Accepts]: Start accepts. Automaton has 18961 states and 26061 transitions. Word has length 392 [2024-12-02 07:51:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:20,917 INFO L471 AbstractCegarLoop]: Abstraction has 18961 states and 26061 transitions. [2024-12-02 07:51:20,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 18961 states and 26061 transitions. [2024-12-02 07:51:20,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:20,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:20,928 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:20,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-12-02 07:51:21,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-12-02 07:51:21,128 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:21,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:21,129 INFO L85 PathProgramCache]: Analyzing trace with hash -580222788, now seen corresponding path program 1 times [2024-12-02 07:51:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:21,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642438986] [2024-12-02 07:51:21,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:51:24,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:24,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642438986] [2024-12-02 07:51:24,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642438986] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:24,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:24,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:51:24,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523123023] [2024-12-02 07:51:24,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:24,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:51:24,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:24,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:51:24,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:51:24,837 INFO L87 Difference]: Start difference. First operand 18961 states and 26061 transitions. Second operand has 10 states, 10 states have (on average 39.2) internal successors, (392), 10 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:25,057 INFO L93 Difference]: Finished difference Result 35311 states and 48943 transitions. [2024-12-02 07:51:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:51:25,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.2) internal successors, (392), 10 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:25,071 INFO L225 Difference]: With dead ends: 35311 [2024-12-02 07:51:25,071 INFO L226 Difference]: Without dead ends: 20579 [2024-12-02 07:51:25,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:51:25,080 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 336 mSDsluCounter, 5165 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:25,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 5834 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:51:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20579 states. [2024-12-02 07:51:25,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20579 to 20273. [2024-12-02 07:51:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20273 states, 20272 states have (on average 1.3771211523283347) internal successors, (27917), 20272 states have internal predecessors, (27917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:25,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20273 states to 20273 states and 27917 transitions. [2024-12-02 07:51:25,321 INFO L78 Accepts]: Start accepts. Automaton has 20273 states and 27917 transitions. Word has length 392 [2024-12-02 07:51:25,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:25,321 INFO L471 AbstractCegarLoop]: Abstraction has 20273 states and 27917 transitions. [2024-12-02 07:51:25,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.2) internal successors, (392), 10 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:25,321 INFO L276 IsEmpty]: Start isEmpty. Operand 20273 states and 27917 transitions. [2024-12-02 07:51:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:25,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:25,332 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 07:51:25,332 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:25,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash -29054727, now seen corresponding path program 1 times [2024-12-02 07:51:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102220542] [2024-12-02 07:51:25,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-12-02 07:51:26,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:26,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102220542] [2024-12-02 07:51:26,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102220542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:26,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:26,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:51:26,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263862387] [2024-12-02 07:51:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:26,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:51:26,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:26,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:51:26,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:51:26,604 INFO L87 Difference]: Start difference. First operand 20273 states and 27917 transitions. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:26,763 INFO L93 Difference]: Finished difference Result 40375 states and 55658 transitions. [2024-12-02 07:51:26,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:51:26,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:26,777 INFO L225 Difference]: With dead ends: 40375 [2024-12-02 07:51:26,777 INFO L226 Difference]: Without dead ends: 20477 [2024-12-02 07:51:26,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:51:26,787 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 344 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:26,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1500 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:51:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20477 states. [2024-12-02 07:51:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20477 to 20477. [2024-12-02 07:51:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20477 states, 20476 states have (on average 1.376684899394413) internal successors, (28189), 20476 states have internal predecessors, (28189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20477 states to 20477 states and 28189 transitions. [2024-12-02 07:51:26,996 INFO L78 Accepts]: Start accepts. Automaton has 20477 states and 28189 transitions. Word has length 392 [2024-12-02 07:51:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:26,997 INFO L471 AbstractCegarLoop]: Abstraction has 20477 states and 28189 transitions. [2024-12-02 07:51:26,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 20477 states and 28189 transitions. [2024-12-02 07:51:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:27,008 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:27,008 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:27,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 07:51:27,008 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:27,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:27,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2033917010, now seen corresponding path program 1 times [2024-12-02 07:51:27,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:27,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191021798] [2024-12-02 07:51:27,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:27,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 07:51:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191021798] [2024-12-02 07:51:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191021798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:29,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:29,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:51:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701343008] [2024-12-02 07:51:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:29,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:51:29,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:29,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:51:29,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:29,185 INFO L87 Difference]: Start difference. First operand 20477 states and 28189 transitions. Second operand has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:29,739 INFO L93 Difference]: Finished difference Result 41147 states and 56706 transitions. [2024-12-02 07:51:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:51:29,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:29,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:29,753 INFO L225 Difference]: With dead ends: 41147 [2024-12-02 07:51:29,753 INFO L226 Difference]: Without dead ends: 21021 [2024-12-02 07:51:29,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:29,763 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 347 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:29,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1737 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:51:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21021 states. [2024-12-02 07:51:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21021 to 20681. [2024-12-02 07:51:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20681 states, 20680 states have (on average 1.376257253384913) internal successors, (28461), 20680 states have internal predecessors, (28461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 28461 transitions. [2024-12-02 07:51:29,974 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 28461 transitions. Word has length 392 [2024-12-02 07:51:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:29,975 INFO L471 AbstractCegarLoop]: Abstraction has 20681 states and 28461 transitions. [2024-12-02 07:51:29,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 28461 transitions. [2024-12-02 07:51:29,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-12-02 07:51:29,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:29,986 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:29,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 07:51:29,986 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:29,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:29,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1679260160, now seen corresponding path program 1 times [2024-12-02 07:51:29,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:29,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289589268] [2024-12-02 07:51:29,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:29,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:51:34,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:34,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289589268] [2024-12-02 07:51:34,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289589268] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:51:34,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639237903] [2024-12-02 07:51:34,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:34,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:51:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:51:34,502 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:51:34,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-12-02 07:51:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:36,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-12-02 07:51:36,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:51:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 170 proven. 13 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 07:51:38,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:51:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 07:51:38,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639237903] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:51:38,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:51:38,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10, 9] total 26 [2024-12-02 07:51:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844820925] [2024-12-02 07:51:38,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:38,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:51:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:38,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:51:38,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:51:38,741 INFO L87 Difference]: Start difference. First operand 20681 states and 28461 transitions. Second operand has 11 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:40,040 INFO L93 Difference]: Finished difference Result 58791 states and 81351 transitions. [2024-12-02 07:51:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:51:40,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-12-02 07:51:40,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:40,061 INFO L225 Difference]: With dead ends: 58791 [2024-12-02 07:51:40,061 INFO L226 Difference]: Without dead ends: 42363 [2024-12-02 07:51:40,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:51:40,070 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 1638 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:40,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 4010 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:51:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42363 states. [2024-12-02 07:51:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42363 to 42361. [2024-12-02 07:51:40,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42361 states, 42360 states have (on average 1.379721435316336) internal successors, (58445), 42360 states have internal predecessors, (58445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42361 states to 42361 states and 58445 transitions. [2024-12-02 07:51:40,478 INFO L78 Accepts]: Start accepts. Automaton has 42361 states and 58445 transitions. Word has length 392 [2024-12-02 07:51:40,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:40,479 INFO L471 AbstractCegarLoop]: Abstraction has 42361 states and 58445 transitions. [2024-12-02 07:51:40,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 42361 states and 58445 transitions. [2024-12-02 07:51:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:51:40,503 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:40,503 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:40,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-12-02 07:51:40,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-12-02 07:51:40,703 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:40,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:40,704 INFO L85 PathProgramCache]: Analyzing trace with hash -100879343, now seen corresponding path program 1 times [2024-12-02 07:51:40,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:40,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130294988] [2024-12-02 07:51:40,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:40,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:44,561 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 07:51:44,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:44,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130294988] [2024-12-02 07:51:44,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130294988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:44,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:44,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:51:44,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35000558] [2024-12-02 07:51:44,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:44,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:51:44,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:44,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:51:44,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:51:44,562 INFO L87 Difference]: Start difference. First operand 42361 states and 58445 transitions. Second operand has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:44,869 INFO L93 Difference]: Finished difference Result 80587 states and 111514 transitions. [2024-12-02 07:51:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:51:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:51:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:44,894 INFO L225 Difference]: With dead ends: 80587 [2024-12-02 07:51:44,895 INFO L226 Difference]: Without dead ends: 42785 [2024-12-02 07:51:44,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:51:44,913 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 1004 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:44,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 2273 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:51:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42785 states. [2024-12-02 07:51:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42785 to 42785. [2024-12-02 07:51:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42785 states, 42784 states have (on average 1.3802589753178758) internal successors, (59053), 42784 states have internal predecessors, (59053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42785 states to 42785 states and 59053 transitions. [2024-12-02 07:51:45,465 INFO L78 Accepts]: Start accepts. Automaton has 42785 states and 59053 transitions. Word has length 393 [2024-12-02 07:51:45,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:45,465 INFO L471 AbstractCegarLoop]: Abstraction has 42785 states and 59053 transitions. [2024-12-02 07:51:45,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:51:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 42785 states and 59053 transitions. [2024-12-02 07:51:45,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:51:45,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:45,494 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:45,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 07:51:45,495 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:45,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1269388411, now seen corresponding path program 1 times [2024-12-02 07:51:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:45,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769591856] [2024-12-02 07:51:45,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:45,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 207 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:51:57,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:57,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769591856] [2024-12-02 07:51:57,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769591856] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:51:57,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784380610] [2024-12-02 07:51:57,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:57,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:51:57,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:51:57,203 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:51:57,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-12-02 07:52:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:00,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-12-02 07:52:00,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:52:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:01,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:52:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-12-02 07:52:02,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784380610] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:52:02,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:52:02,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [27, 18] total 55 [2024-12-02 07:52:02,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667317796] [2024-12-02 07:52:02,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:02,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:52:02,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:02,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:52:02,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=2730, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 07:52:02,446 INFO L87 Difference]: Start difference. First operand 42785 states and 59053 transitions. Second operand has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:03,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:03,650 INFO L93 Difference]: Finished difference Result 85343 states and 118094 transitions. [2024-12-02 07:52:03,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:52:03,651 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:03,681 INFO L225 Difference]: With dead ends: 85343 [2024-12-02 07:52:03,681 INFO L226 Difference]: Without dead ends: 47105 [2024-12-02 07:52:03,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 762 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=297, Invalid=3125, Unknown=0, NotChecked=0, Total=3422 [2024-12-02 07:52:03,701 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 102 mSDsluCounter, 3866 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:03,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 4372 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:52:03,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47105 states. [2024-12-02 07:52:04,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47105 to 45985. [2024-12-02 07:52:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45985 states, 45984 states have (on average 1.3851122129436326) internal successors, (63693), 45984 states have internal predecessors, (63693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45985 states to 45985 states and 63693 transitions. [2024-12-02 07:52:04,185 INFO L78 Accepts]: Start accepts. Automaton has 45985 states and 63693 transitions. Word has length 393 [2024-12-02 07:52:04,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:04,186 INFO L471 AbstractCegarLoop]: Abstraction has 45985 states and 63693 transitions. [2024-12-02 07:52:04,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:04,186 INFO L276 IsEmpty]: Start isEmpty. Operand 45985 states and 63693 transitions. [2024-12-02 07:52:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:04,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:04,215 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:04,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-12-02 07:52:04,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:04,415 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:04,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1685552396, now seen corresponding path program 1 times [2024-12-02 07:52:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:04,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358558850] [2024-12-02 07:52:04,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-12-02 07:52:06,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:06,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358558850] [2024-12-02 07:52:06,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358558850] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:52:06,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968298785] [2024-12-02 07:52:06,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:06,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:06,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:52:06,049 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:52:06,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-12-02 07:52:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:08,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 07:52:08,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:52:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-12-02 07:52:08,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:52:08,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968298785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:08,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:52:08,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-12-02 07:52:08,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781562163] [2024-12-02 07:52:08,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:08,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:52:08,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:08,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:52:08,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:52:08,294 INFO L87 Difference]: Start difference. First operand 45985 states and 63693 transitions. Second operand has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:08,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:08,583 INFO L93 Difference]: Finished difference Result 87743 states and 121390 transitions. [2024-12-02 07:52:08,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:52:08,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:08,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:08,614 INFO L225 Difference]: With dead ends: 87743 [2024-12-02 07:52:08,614 INFO L226 Difference]: Without dead ends: 46065 [2024-12-02 07:52:08,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:52:08,635 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:08,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2529 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:52:08,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46065 states. [2024-12-02 07:52:09,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46065 to 46065. [2024-12-02 07:52:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46065 states, 46064 states have (on average 1.3827066689822856) internal successors, (63693), 46064 states have internal predecessors, (63693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46065 states to 46065 states and 63693 transitions. [2024-12-02 07:52:09,104 INFO L78 Accepts]: Start accepts. Automaton has 46065 states and 63693 transitions. Word has length 393 [2024-12-02 07:52:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:09,104 INFO L471 AbstractCegarLoop]: Abstraction has 46065 states and 63693 transitions. [2024-12-02 07:52:09,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 46065 states and 63693 transitions. [2024-12-02 07:52:09,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:09,133 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:09,133 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:09,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-12-02 07:52:09,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-12-02 07:52:09,333 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:09,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:09,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1832086649, now seen corresponding path program 1 times [2024-12-02 07:52:09,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:09,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822544463] [2024-12-02 07:52:09,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:09,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:12,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:12,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822544463] [2024-12-02 07:52:12,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822544463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:12,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:12,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:52:12,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044039061] [2024-12-02 07:52:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:12,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:52:12,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:12,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:52:12,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:52:12,384 INFO L87 Difference]: Start difference. First operand 46065 states and 63693 transitions. Second operand has 10 states, 10 states have (on average 39.3) internal successors, (393), 10 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:12,757 INFO L93 Difference]: Finished difference Result 96893 states and 134895 transitions. [2024-12-02 07:52:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:52:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.3) internal successors, (393), 10 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:12,800 INFO L225 Difference]: With dead ends: 96893 [2024-12-02 07:52:12,800 INFO L226 Difference]: Without dead ends: 60223 [2024-12-02 07:52:12,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:52:12,821 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 336 mSDsluCounter, 5818 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:12,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 6652 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:52:12,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60223 states. [2024-12-02 07:52:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60223 to 59005. [2024-12-02 07:52:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59005 states, 59004 states have (on average 1.3850755880957224) internal successors, (81725), 59004 states have internal predecessors, (81725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:13,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59005 states to 59005 states and 81725 transitions. [2024-12-02 07:52:13,447 INFO L78 Accepts]: Start accepts. Automaton has 59005 states and 81725 transitions. Word has length 393 [2024-12-02 07:52:13,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:13,448 INFO L471 AbstractCegarLoop]: Abstraction has 59005 states and 81725 transitions. [2024-12-02 07:52:13,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.3) internal successors, (393), 10 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:13,448 INFO L276 IsEmpty]: Start isEmpty. Operand 59005 states and 81725 transitions. [2024-12-02 07:52:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:13,487 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:13,487 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:13,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 07:52:13,487 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:13,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:13,488 INFO L85 PathProgramCache]: Analyzing trace with hash 574857578, now seen corresponding path program 1 times [2024-12-02 07:52:13,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:13,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368028828] [2024-12-02 07:52:13,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:13,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-12-02 07:52:14,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:14,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368028828] [2024-12-02 07:52:14,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368028828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:14,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:14,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:52:14,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811541353] [2024-12-02 07:52:14,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:14,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:52:14,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:14,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:52:14,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:52:14,744 INFO L87 Difference]: Start difference. First operand 59005 states and 81725 transitions. Second operand has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:15,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:15,078 INFO L93 Difference]: Finished difference Result 115791 states and 160382 transitions. [2024-12-02 07:52:15,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:52:15,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:15,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:15,126 INFO L225 Difference]: With dead ends: 115791 [2024-12-02 07:52:15,126 INFO L226 Difference]: Without dead ends: 59437 [2024-12-02 07:52:15,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:52:15,157 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 342 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:15,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1502 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:52:15,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59437 states. [2024-12-02 07:52:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59437 to 59437. [2024-12-02 07:52:15,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59437 states, 59436 states have (on average 1.3846995087152567) internal successors, (82301), 59436 states have internal predecessors, (82301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59437 states to 59437 states and 82301 transitions. [2024-12-02 07:52:15,898 INFO L78 Accepts]: Start accepts. Automaton has 59437 states and 82301 transitions. Word has length 393 [2024-12-02 07:52:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:15,898 INFO L471 AbstractCegarLoop]: Abstraction has 59437 states and 82301 transitions. [2024-12-02 07:52:15,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 59437 states and 82301 transitions. [2024-12-02 07:52:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:15,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:15,936 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:15,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 07:52:15,936 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:15,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2084432463, now seen corresponding path program 1 times [2024-12-02 07:52:15,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:15,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858969688] [2024-12-02 07:52:15,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-12-02 07:52:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858969688] [2024-12-02 07:52:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858969688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:52:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349418936] [2024-12-02 07:52:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:17,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:52:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:17,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:52:17,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:52:17,615 INFO L87 Difference]: Start difference. First operand 59437 states and 82301 transitions. Second operand has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:18,385 INFO L93 Difference]: Finished difference Result 117471 states and 162654 transitions. [2024-12-02 07:52:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:52:18,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:18,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:18,426 INFO L225 Difference]: With dead ends: 117471 [2024-12-02 07:52:18,426 INFO L226 Difference]: Without dead ends: 60589 [2024-12-02 07:52:18,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:52:18,453 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 347 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:18,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1739 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:52:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60589 states. [2024-12-02 07:52:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60589 to 59869. [2024-12-02 07:52:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59869 states, 59868 states have (on average 1.3843288568183336) internal successors, (82877), 59868 states have internal predecessors, (82877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:19,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59869 states to 59869 states and 82877 transitions. [2024-12-02 07:52:19,141 INFO L78 Accepts]: Start accepts. Automaton has 59869 states and 82877 transitions. Word has length 393 [2024-12-02 07:52:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:19,141 INFO L471 AbstractCegarLoop]: Abstraction has 59869 states and 82877 transitions. [2024-12-02 07:52:19,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 59869 states and 82877 transitions. [2024-12-02 07:52:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:19,182 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:19,182 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:19,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-12-02 07:52:19,183 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:19,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:19,183 INFO L85 PathProgramCache]: Analyzing trace with hash -316991293, now seen corresponding path program 1 times [2024-12-02 07:52:19,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:19,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613722594] [2024-12-02 07:52:19,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:19,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 07:52:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613722594] [2024-12-02 07:52:19,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613722594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:19,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:19,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:52:19,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479813267] [2024-12-02 07:52:19,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:19,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:52:19,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:19,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:52:19,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:52:19,750 INFO L87 Difference]: Start difference. First operand 59869 states and 82877 transitions. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:20,030 INFO L93 Difference]: Finished difference Result 118127 states and 163478 transitions. [2024-12-02 07:52:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:52:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:20,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:20,093 INFO L225 Difference]: With dead ends: 118127 [2024-12-02 07:52:20,093 INFO L226 Difference]: Without dead ends: 60093 [2024-12-02 07:52:20,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:52:20,126 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:20,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1583 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:52:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60093 states. [2024-12-02 07:52:20,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60093 to 60093. [2024-12-02 07:52:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60093 states, 60092 states have (on average 1.3828962257871265) internal successors, (83101), 60092 states have internal predecessors, (83101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:20,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60093 states to 60093 states and 83101 transitions. [2024-12-02 07:52:20,939 INFO L78 Accepts]: Start accepts. Automaton has 60093 states and 83101 transitions. Word has length 393 [2024-12-02 07:52:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:20,940 INFO L471 AbstractCegarLoop]: Abstraction has 60093 states and 83101 transitions. [2024-12-02 07:52:20,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:20,940 INFO L276 IsEmpty]: Start isEmpty. Operand 60093 states and 83101 transitions. [2024-12-02 07:52:20,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:20,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:20,996 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:20,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-12-02 07:52:20,996 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:20,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:20,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1561799306, now seen corresponding path program 1 times [2024-12-02 07:52:20,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:20,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847648320] [2024-12-02 07:52:20,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:20,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-12-02 07:52:22,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:22,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847648320] [2024-12-02 07:52:22,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847648320] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:52:22,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563527196] [2024-12-02 07:52:22,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:22,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:52:22,383 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:52:22,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-12-02 07:52:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:24,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:52:24,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:52:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-12-02 07:52:24,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:52:24,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563527196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:24,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:52:24,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 07:52:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427909837] [2024-12-02 07:52:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:24,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:52:24,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:24,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:52:24,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:52:24,965 INFO L87 Difference]: Start difference. First operand 60093 states and 83101 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:25,308 INFO L93 Difference]: Finished difference Result 114819 states and 159210 transitions. [2024-12-02 07:52:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:52:25,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:25,360 INFO L225 Difference]: With dead ends: 114819 [2024-12-02 07:52:25,360 INFO L226 Difference]: Without dead ends: 60541 [2024-12-02 07:52:25,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:52:25,390 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:25,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:52:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60541 states. [2024-12-02 07:52:25,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60541 to 60429. [2024-12-02 07:52:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60429 states, 60428 states have (on average 1.3826206394386709) internal successors, (83549), 60428 states have internal predecessors, (83549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:25,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60429 states to 60429 states and 83549 transitions. [2024-12-02 07:52:25,972 INFO L78 Accepts]: Start accepts. Automaton has 60429 states and 83549 transitions. Word has length 393 [2024-12-02 07:52:25,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:25,972 INFO L471 AbstractCegarLoop]: Abstraction has 60429 states and 83549 transitions. [2024-12-02 07:52:25,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 60429 states and 83549 transitions. [2024-12-02 07:52:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:26,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:26,014 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:26,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-12-02 07:52:26,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:26,214 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:26,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:26,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1579697169, now seen corresponding path program 1 times [2024-12-02 07:52:26,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:26,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102468325] [2024-12-02 07:52:26,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-12-02 07:52:28,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:28,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102468325] [2024-12-02 07:52:28,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102468325] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:28,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:28,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:52:28,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375826432] [2024-12-02 07:52:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:28,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:52:28,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:28,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:52:28,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:52:28,357 INFO L87 Difference]: Start difference. First operand 60429 states and 83549 transitions. Second operand has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:28,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:28,822 INFO L93 Difference]: Finished difference Result 120087 states and 166070 transitions. [2024-12-02 07:52:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:52:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:28,858 INFO L225 Difference]: With dead ends: 120087 [2024-12-02 07:52:28,858 INFO L226 Difference]: Without dead ends: 60989 [2024-12-02 07:52:28,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:52:28,873 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 346 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:28,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2477 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:52:28,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60989 states. [2024-12-02 07:52:29,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60989 to 60989. [2024-12-02 07:52:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60989 states, 60988 states have (on average 1.3809437922214205) internal successors, (84221), 60988 states have internal predecessors, (84221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60989 states to 60989 states and 84221 transitions. [2024-12-02 07:52:29,454 INFO L78 Accepts]: Start accepts. Automaton has 60989 states and 84221 transitions. Word has length 393 [2024-12-02 07:52:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:29,454 INFO L471 AbstractCegarLoop]: Abstraction has 60989 states and 84221 transitions. [2024-12-02 07:52:29,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 60989 states and 84221 transitions. [2024-12-02 07:52:29,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:29,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:29,495 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:29,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-12-02 07:52:29,495 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:29,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash -111568649, now seen corresponding path program 1 times [2024-12-02 07:52:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868892231] [2024-12-02 07:52:29,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 07:52:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:30,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868892231] [2024-12-02 07:52:30,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868892231] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:30,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:30,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:52:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850164263] [2024-12-02 07:52:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:30,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:52:30,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:30,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:52:30,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:52:30,155 INFO L87 Difference]: Start difference. First operand 60989 states and 84221 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:30,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:30,778 INFO L93 Difference]: Finished difference Result 120879 states and 166918 transitions. [2024-12-02 07:52:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:52:30,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:30,818 INFO L225 Difference]: With dead ends: 120879 [2024-12-02 07:52:30,818 INFO L226 Difference]: Without dead ends: 61197 [2024-12-02 07:52:30,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:52:30,835 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:30,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1141 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:52:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61197 states. [2024-12-02 07:52:31,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61197 to 61197. [2024-12-02 07:52:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61197 states, 61196 states have (on average 1.3796489966664487) internal successors, (84429), 61196 states have internal predecessors, (84429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61197 states to 61197 states and 84429 transitions. [2024-12-02 07:52:31,409 INFO L78 Accepts]: Start accepts. Automaton has 61197 states and 84429 transitions. Word has length 393 [2024-12-02 07:52:31,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:31,409 INFO L471 AbstractCegarLoop]: Abstraction has 61197 states and 84429 transitions. [2024-12-02 07:52:31,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 61197 states and 84429 transitions. [2024-12-02 07:52:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:31,453 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:31,453 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:31,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-12-02 07:52:31,453 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:31,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 238281799, now seen corresponding path program 1 times [2024-12-02 07:52:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089870644] [2024-12-02 07:52:31,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 155 proven. 4 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 07:52:34,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:34,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089870644] [2024-12-02 07:52:34,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089870644] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:52:34,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561651310] [2024-12-02 07:52:34,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:34,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:34,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:52:34,459 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:52:34,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-12-02 07:52:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:38,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-12-02 07:52:38,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:52:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 161 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:40,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:52:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 186 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:43,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561651310] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:52:43,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:52:43,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 22, 17] total 42 [2024-12-02 07:52:43,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664398967] [2024-12-02 07:52:43,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:52:43,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 07:52:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:43,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 07:52:43,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1589, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 07:52:43,007 INFO L87 Difference]: Start difference. First operand 61197 states and 84429 transitions. Second operand has 42 states, 42 states have (on average 23.333333333333332) internal successors, (980), 42 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:50,761 INFO L93 Difference]: Finished difference Result 198347 states and 276536 transitions. [2024-12-02 07:52:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-12-02 07:52:50,762 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 23.333333333333332) internal successors, (980), 42 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:50,861 INFO L225 Difference]: With dead ends: 198347 [2024-12-02 07:52:50,861 INFO L226 Difference]: Without dead ends: 137445 [2024-12-02 07:52:50,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3145 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=895, Invalid=11537, Unknown=0, NotChecked=0, Total=12432 [2024-12-02 07:52:50,910 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 4362 mSDsluCounter, 7764 mSDsCounter, 0 mSdLazyCounter, 9574 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 8015 SdHoareTripleChecker+Invalid, 9597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 9574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:50,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 8015 Invalid, 9597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 9574 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 07:52:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137445 states. [2024-12-02 07:52:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137445 to 71329. [2024-12-02 07:52:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71329 states, 71328 states have (on average 1.3787713100044863) internal successors, (98345), 71328 states have internal predecessors, (98345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71329 states to 71329 states and 98345 transitions. [2024-12-02 07:52:51,940 INFO L78 Accepts]: Start accepts. Automaton has 71329 states and 98345 transitions. Word has length 393 [2024-12-02 07:52:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:51,940 INFO L471 AbstractCegarLoop]: Abstraction has 71329 states and 98345 transitions. [2024-12-02 07:52:51,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 23.333333333333332) internal successors, (980), 42 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 71329 states and 98345 transitions. [2024-12-02 07:52:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:51,989 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:51,990 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:52,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-12-02 07:52:52,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:52,190 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:52,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash -286872272, now seen corresponding path program 1 times [2024-12-02 07:52:52,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:52,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468599380] [2024-12-02 07:52:52,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 07:52:52,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:52,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468599380] [2024-12-02 07:52:52,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468599380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:52,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:52,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:52:52,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439458202] [2024-12-02 07:52:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:52,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:52:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:52,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:52:52,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:52:52,938 INFO L87 Difference]: Start difference. First operand 71329 states and 98345 transitions. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:53,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:52:53,500 INFO L93 Difference]: Finished difference Result 143231 states and 197586 transitions. [2024-12-02 07:52:53,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:52:53,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:52:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:52:53,553 INFO L225 Difference]: With dead ends: 143231 [2024-12-02 07:52:53,553 INFO L226 Difference]: Without dead ends: 72225 [2024-12-02 07:52:53,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:52:53,585 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:52:53,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1140 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:52:53,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72225 states. [2024-12-02 07:52:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72225 to 72225. [2024-12-02 07:52:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72225 states, 72224 states have (on average 1.3740723305272486) internal successors, (99241), 72224 states have internal predecessors, (99241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72225 states to 72225 states and 99241 transitions. [2024-12-02 07:52:54,287 INFO L78 Accepts]: Start accepts. Automaton has 72225 states and 99241 transitions. Word has length 393 [2024-12-02 07:52:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:52:54,287 INFO L471 AbstractCegarLoop]: Abstraction has 72225 states and 99241 transitions. [2024-12-02 07:52:54,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:52:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 72225 states and 99241 transitions. [2024-12-02 07:52:54,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:52:54,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:52:54,336 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:54,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-12-02 07:52:54,336 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:52:54,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:54,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1047087992, now seen corresponding path program 1 times [2024-12-02 07:52:54,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:54,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554186598] [2024-12-02 07:52:54,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:54,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:52:59,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:59,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554186598] [2024-12-02 07:52:59,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554186598] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:52:59,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80962823] [2024-12-02 07:52:59,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:59,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:52:59,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:52:59,707 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:52:59,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-12-02 07:53:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:02,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 134 conjuncts are in the unsatisfiable core [2024-12-02 07:53:02,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:53:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 184 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 07:53:03,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:53:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 07:53:03,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80962823] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:53:03,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:53:03,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9, 20] total 37 [2024-12-02 07:53:03,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856776944] [2024-12-02 07:53:03,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:03,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:53:03,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:03,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:53:03,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:53:03,825 INFO L87 Difference]: Start difference. First operand 72225 states and 99241 transitions. Second operand has 12 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:05,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:05,018 INFO L93 Difference]: Finished difference Result 121767 states and 167612 transitions. [2024-12-02 07:53:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:53:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:53:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:05,066 INFO L225 Difference]: With dead ends: 121767 [2024-12-02 07:53:05,066 INFO L226 Difference]: Without dead ends: 76375 [2024-12-02 07:53:05,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:53:05,094 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 182 mSDsluCounter, 4106 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 4854 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:05,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 4854 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:53:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76375 states. [2024-12-02 07:53:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76375 to 76375. [2024-12-02 07:53:05,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76375 states, 76374 states have (on average 1.3735433524497866) internal successors, (104903), 76374 states have internal predecessors, (104903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76375 states to 76375 states and 104903 transitions. [2024-12-02 07:53:05,791 INFO L78 Accepts]: Start accepts. Automaton has 76375 states and 104903 transitions. Word has length 393 [2024-12-02 07:53:05,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:05,791 INFO L471 AbstractCegarLoop]: Abstraction has 76375 states and 104903 transitions. [2024-12-02 07:53:05,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 76375 states and 104903 transitions. [2024-12-02 07:53:05,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:53:05,843 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:05,844 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:05,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-12-02 07:53:06,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:06,044 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:06,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash -500162484, now seen corresponding path program 1 times [2024-12-02 07:53:06,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:06,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873097002] [2024-12-02 07:53:06,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:06,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:53:11,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873097002] [2024-12-02 07:53:11,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873097002] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:53:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275610070] [2024-12-02 07:53:11,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:11,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:11,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:53:11,829 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:53:11,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-12-02 07:53:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:14,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-12-02 07:53:14,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:53:15,369 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 07:53:15,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:53:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275610070] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:15,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:53:15,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 20 [2024-12-02 07:53:15,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764444982] [2024-12-02 07:53:15,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:15,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:53:15,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:15,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:53:15,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:53:15,371 INFO L87 Difference]: Start difference. First operand 76375 states and 104903 transitions. Second operand has 12 states, 12 states have (on average 30.0) internal successors, (360), 12 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:16,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:16,645 INFO L93 Difference]: Finished difference Result 152915 states and 210414 transitions. [2024-12-02 07:53:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:53:16,646 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 30.0) internal successors, (360), 12 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:53:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:16,702 INFO L225 Difference]: With dead ends: 152915 [2024-12-02 07:53:16,702 INFO L226 Difference]: Without dead ends: 80711 [2024-12-02 07:53:16,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:53:16,738 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 555 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:16,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 2861 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:53:16,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80711 states. [2024-12-02 07:53:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80711 to 80221. [2024-12-02 07:53:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80221 states, 80220 states have (on average 1.3656320119670906) internal successors, (109551), 80220 states have internal predecessors, (109551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80221 states to 80221 states and 109551 transitions. [2024-12-02 07:53:17,501 INFO L78 Accepts]: Start accepts. Automaton has 80221 states and 109551 transitions. Word has length 393 [2024-12-02 07:53:17,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:17,501 INFO L471 AbstractCegarLoop]: Abstraction has 80221 states and 109551 transitions. [2024-12-02 07:53:17,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.0) internal successors, (360), 12 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:17,501 INFO L276 IsEmpty]: Start isEmpty. Operand 80221 states and 109551 transitions. [2024-12-02 07:53:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:53:17,554 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:17,555 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:17,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-12-02 07:53:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:17,755 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:17,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:17,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1228507546, now seen corresponding path program 1 times [2024-12-02 07:53:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:17,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875162366] [2024-12-02 07:53:17,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:17,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:53:18,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:18,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875162366] [2024-12-02 07:53:18,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875162366] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:18,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:18,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:53:18,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330955581] [2024-12-02 07:53:18,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:18,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:53:18,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:18,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:53:18,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:18,368 INFO L87 Difference]: Start difference. First operand 80221 states and 109551 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:18,842 INFO L93 Difference]: Finished difference Result 155357 states and 211602 transitions. [2024-12-02 07:53:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:53:18,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:53:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:18,889 INFO L225 Difference]: With dead ends: 155357 [2024-12-02 07:53:18,889 INFO L226 Difference]: Without dead ends: 75591 [2024-12-02 07:53:18,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:18,914 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:18,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1587 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:53:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75591 states. [2024-12-02 07:53:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75591 to 75591. [2024-12-02 07:53:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75591 states, 75590 states have (on average 1.356647704722847) internal successors, (102549), 75590 states have internal predecessors, (102549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75591 states to 75591 states and 102549 transitions. [2024-12-02 07:53:19,601 INFO L78 Accepts]: Start accepts. Automaton has 75591 states and 102549 transitions. Word has length 393 [2024-12-02 07:53:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:19,601 INFO L471 AbstractCegarLoop]: Abstraction has 75591 states and 102549 transitions. [2024-12-02 07:53:19,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:19,601 INFO L276 IsEmpty]: Start isEmpty. Operand 75591 states and 102549 transitions. [2024-12-02 07:53:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 07:53:19,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:19,650 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:19,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-12-02 07:53:19,650 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:19,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:19,650 INFO L85 PathProgramCache]: Analyzing trace with hash -948757426, now seen corresponding path program 1 times [2024-12-02 07:53:19,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:19,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643782871] [2024-12-02 07:53:19,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:19,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-12-02 07:53:22,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:22,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643782871] [2024-12-02 07:53:22,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643782871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:22,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:22,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:53:22,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680586058] [2024-12-02 07:53:22,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:22,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:53:22,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:22,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:53:22,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:22,334 INFO L87 Difference]: Start difference. First operand 75591 states and 102549 transitions. Second operand has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:22,909 INFO L93 Difference]: Finished difference Result 150819 states and 204614 transitions. [2024-12-02 07:53:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:53:22,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-12-02 07:53:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:22,968 INFO L225 Difference]: With dead ends: 150819 [2024-12-02 07:53:22,968 INFO L226 Difference]: Without dead ends: 76173 [2024-12-02 07:53:22,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:53:22,996 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 798 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:22,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2592 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:53:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76173 states. [2024-12-02 07:53:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76173 to 76173. [2024-12-02 07:53:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76173 states, 76172 states have (on average 1.356364543401775) internal successors, (103317), 76172 states have internal predecessors, (103317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76173 states to 76173 states and 103317 transitions. [2024-12-02 07:53:24,067 INFO L78 Accepts]: Start accepts. Automaton has 76173 states and 103317 transitions. Word has length 393 [2024-12-02 07:53:24,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:24,067 INFO L471 AbstractCegarLoop]: Abstraction has 76173 states and 103317 transitions. [2024-12-02 07:53:24,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:24,067 INFO L276 IsEmpty]: Start isEmpty. Operand 76173 states and 103317 transitions. [2024-12-02 07:53:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:24,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:24,116 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:24,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-12-02 07:53:24,116 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:24,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:24,116 INFO L85 PathProgramCache]: Analyzing trace with hash 334967653, now seen corresponding path program 1 times [2024-12-02 07:53:24,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:24,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809064793] [2024-12-02 07:53:24,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:24,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-12-02 07:53:24,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:24,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809064793] [2024-12-02 07:53:24,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809064793] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:24,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:24,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:53:24,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217196885] [2024-12-02 07:53:24,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:24,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:53:24,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:24,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:53:24,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:24,776 INFO L87 Difference]: Start difference. First operand 76173 states and 103317 transitions. Second operand has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:25,299 INFO L93 Difference]: Finished difference Result 149535 states and 202806 transitions. [2024-12-02 07:53:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:53:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:25,348 INFO L225 Difference]: With dead ends: 149535 [2024-12-02 07:53:25,348 INFO L226 Difference]: Without dead ends: 76461 [2024-12-02 07:53:25,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:25,380 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:25,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1139 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:53:25,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76461 states. [2024-12-02 07:53:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76461 to 76461. [2024-12-02 07:53:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76461 states, 76460 states have (on average 1.3550222338477635) internal successors, (103605), 76460 states have internal predecessors, (103605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76461 states to 76461 states and 103605 transitions. [2024-12-02 07:53:26,097 INFO L78 Accepts]: Start accepts. Automaton has 76461 states and 103605 transitions. Word has length 394 [2024-12-02 07:53:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:26,098 INFO L471 AbstractCegarLoop]: Abstraction has 76461 states and 103605 transitions. [2024-12-02 07:53:26,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:26,098 INFO L276 IsEmpty]: Start isEmpty. Operand 76461 states and 103605 transitions. [2024-12-02 07:53:26,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:26,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:26,148 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:26,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-12-02 07:53:26,149 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:26,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:26,149 INFO L85 PathProgramCache]: Analyzing trace with hash -563909852, now seen corresponding path program 1 times [2024-12-02 07:53:26,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:26,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508607068] [2024-12-02 07:53:26,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 07:53:29,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:29,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508607068] [2024-12-02 07:53:29,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508607068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:29,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:29,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:53:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464726341] [2024-12-02 07:53:29,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:29,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:53:29,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:29,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:53:29,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:53:29,949 INFO L87 Difference]: Start difference. First operand 76461 states and 103605 transitions. Second operand has 10 states, 10 states have (on average 34.8) internal successors, (348), 10 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:30,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:30,504 INFO L93 Difference]: Finished difference Result 147655 states and 199782 transitions. [2024-12-02 07:53:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:53:30,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.8) internal successors, (348), 10 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:30,559 INFO L225 Difference]: With dead ends: 147655 [2024-12-02 07:53:30,559 INFO L226 Difference]: Without dead ends: 76941 [2024-12-02 07:53:30,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:53:30,592 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 347 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:30,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 2974 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:53:30,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76941 states. [2024-12-02 07:53:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76941 to 76621. [2024-12-02 07:53:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76621 states, 76620 states have (on average 1.354280866614461) internal successors, (103765), 76620 states have internal predecessors, (103765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76621 states to 76621 states and 103765 transitions. [2024-12-02 07:53:31,314 INFO L78 Accepts]: Start accepts. Automaton has 76621 states and 103765 transitions. Word has length 394 [2024-12-02 07:53:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:31,314 INFO L471 AbstractCegarLoop]: Abstraction has 76621 states and 103765 transitions. [2024-12-02 07:53:31,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.8) internal successors, (348), 10 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:31,315 INFO L276 IsEmpty]: Start isEmpty. Operand 76621 states and 103765 transitions. [2024-12-02 07:53:31,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:31,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:31,365 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:31,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-12-02 07:53:31,365 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:31,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:31,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1903936341, now seen corresponding path program 1 times [2024-12-02 07:53:31,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:31,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763511750] [2024-12-02 07:53:31,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:31,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:32,334 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-12-02 07:53:32,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:32,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763511750] [2024-12-02 07:53:32,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763511750] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:53:32,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156724081] [2024-12-02 07:53:32,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:32,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:32,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:53:32,336 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:53:32,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-12-02 07:53:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:35,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:53:35,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:53:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-12-02 07:53:35,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:53:35,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156724081] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:35,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:53:35,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 07:53:35,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454527770] [2024-12-02 07:53:35,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:35,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:53:35,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:35,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:53:35,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:35,694 INFO L87 Difference]: Start difference. First operand 76621 states and 103765 transitions. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:36,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:36,187 INFO L93 Difference]: Finished difference Result 146967 states and 198966 transitions. [2024-12-02 07:53:36,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:53:36,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:36,240 INFO L225 Difference]: With dead ends: 146967 [2024-12-02 07:53:36,240 INFO L226 Difference]: Without dead ends: 76781 [2024-12-02 07:53:36,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:36,273 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:36,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1530 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:53:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76781 states. [2024-12-02 07:53:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76781 to 76701. [2024-12-02 07:53:36,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76701 states, 76700 states have (on average 1.3539113428943936) internal successors, (103845), 76700 states have internal predecessors, (103845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76701 states to 76701 states and 103845 transitions. [2024-12-02 07:53:37,012 INFO L78 Accepts]: Start accepts. Automaton has 76701 states and 103845 transitions. Word has length 394 [2024-12-02 07:53:37,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:37,012 INFO L471 AbstractCegarLoop]: Abstraction has 76701 states and 103845 transitions. [2024-12-02 07:53:37,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 76701 states and 103845 transitions. [2024-12-02 07:53:37,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:37,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:37,062 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:37,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-12-02 07:53:37,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:37,263 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:37,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash -847546883, now seen corresponding path program 1 times [2024-12-02 07:53:37,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:37,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062533616] [2024-12-02 07:53:37,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-12-02 07:53:39,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:39,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062533616] [2024-12-02 07:53:39,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062533616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:39,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:39,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:53:39,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655586138] [2024-12-02 07:53:39,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:39,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:53:39,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:39,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:53:39,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:39,219 INFO L87 Difference]: Start difference. First operand 76701 states and 103845 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:39,662 INFO L93 Difference]: Finished difference Result 148631 states and 201094 transitions. [2024-12-02 07:53:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:53:39,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:39,712 INFO L225 Difference]: With dead ends: 148631 [2024-12-02 07:53:39,712 INFO L226 Difference]: Without dead ends: 77181 [2024-12-02 07:53:39,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:39,747 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 347 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:39,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 2475 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:53:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77181 states. [2024-12-02 07:53:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77181 to 77181. [2024-12-02 07:53:40,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77181 states, 77180 states have (on average 1.3517102876392848) internal successors, (104325), 77180 states have internal predecessors, (104325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77181 states to 77181 states and 104325 transitions. [2024-12-02 07:53:40,480 INFO L78 Accepts]: Start accepts. Automaton has 77181 states and 104325 transitions. Word has length 394 [2024-12-02 07:53:40,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:40,480 INFO L471 AbstractCegarLoop]: Abstraction has 77181 states and 104325 transitions. [2024-12-02 07:53:40,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 77181 states and 104325 transitions. [2024-12-02 07:53:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:40,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:40,537 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:40,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-12-02 07:53:40,538 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:40,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1833884433, now seen corresponding path program 1 times [2024-12-02 07:53:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314107058] [2024-12-02 07:53:40,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:40,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-12-02 07:53:43,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:43,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314107058] [2024-12-02 07:53:43,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314107058] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:43,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:43,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:53:43,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342547811] [2024-12-02 07:53:43,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:43,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:53:43,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:43,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:53:43,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:43,062 INFO L87 Difference]: Start difference. First operand 77181 states and 104325 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:43,850 INFO L93 Difference]: Finished difference Result 149335 states and 201686 transitions. [2024-12-02 07:53:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:53:43,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:43,904 INFO L225 Difference]: With dead ends: 149335 [2024-12-02 07:53:43,904 INFO L226 Difference]: Without dead ends: 77661 [2024-12-02 07:53:43,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:53:43,941 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 347 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:43,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1737 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:53:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77661 states. [2024-12-02 07:53:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77661 to 77581. [2024-12-02 07:53:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77581 states, 77580 states have (on average 1.3509280742459397) internal successors, (104805), 77580 states have internal predecessors, (104805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77581 states to 77581 states and 104805 transitions. [2024-12-02 07:53:44,755 INFO L78 Accepts]: Start accepts. Automaton has 77581 states and 104805 transitions. Word has length 394 [2024-12-02 07:53:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:44,755 INFO L471 AbstractCegarLoop]: Abstraction has 77581 states and 104805 transitions. [2024-12-02 07:53:44,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 77581 states and 104805 transitions. [2024-12-02 07:53:44,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:44,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:44,807 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:44,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-12-02 07:53:44,807 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:44,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1522407160, now seen corresponding path program 1 times [2024-12-02 07:53:44,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:44,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669426535] [2024-12-02 07:53:44,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:44,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-12-02 07:53:45,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:45,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669426535] [2024-12-02 07:53:45,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669426535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:45,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:45,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:53:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618749354] [2024-12-02 07:53:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:45,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:53:45,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:45,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:53:45,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:45,470 INFO L87 Difference]: Start difference. First operand 77581 states and 104805 transitions. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:46,022 INFO L93 Difference]: Finished difference Result 150215 states and 202742 transitions. [2024-12-02 07:53:46,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:53:46,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:46,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:46,075 INFO L225 Difference]: With dead ends: 150215 [2024-12-02 07:53:46,075 INFO L226 Difference]: Without dead ends: 77901 [2024-12-02 07:53:46,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:46,111 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:46,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1139 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:53:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77901 states. [2024-12-02 07:53:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77901 to 77901. [2024-12-02 07:53:46,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77901 states, 77900 states have (on average 1.3494865211810012) internal successors, (105125), 77900 states have internal predecessors, (105125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77901 states to 77901 states and 105125 transitions. [2024-12-02 07:53:46,979 INFO L78 Accepts]: Start accepts. Automaton has 77901 states and 105125 transitions. Word has length 394 [2024-12-02 07:53:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:46,979 INFO L471 AbstractCegarLoop]: Abstraction has 77901 states and 105125 transitions. [2024-12-02 07:53:46,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 77901 states and 105125 transitions. [2024-12-02 07:53:47,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:47,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:47,030 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:47,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-12-02 07:53:47,030 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:47,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:47,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1029562974, now seen corresponding path program 1 times [2024-12-02 07:53:47,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:47,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118957461] [2024-12-02 07:53:47,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:47,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 07:53:47,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:47,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118957461] [2024-12-02 07:53:47,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118957461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:47,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:47,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:53:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443927671] [2024-12-02 07:53:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:47,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:53:47,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:47,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:53:47,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:47,694 INFO L87 Difference]: Start difference. First operand 77901 states and 105125 transitions. Second operand has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:48,293 INFO L93 Difference]: Finished difference Result 151047 states and 203686 transitions. [2024-12-02 07:53:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:53:48,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:48,346 INFO L225 Difference]: With dead ends: 151047 [2024-12-02 07:53:48,346 INFO L226 Difference]: Without dead ends: 78061 [2024-12-02 07:53:48,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:53:48,382 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:48,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1139 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:53:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78061 states. [2024-12-02 07:53:49,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78061 to 78061. [2024-12-02 07:53:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78061 states, 78060 states have (on average 1.3487701767870868) internal successors, (105285), 78060 states have internal predecessors, (105285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78061 states to 78061 states and 105285 transitions. [2024-12-02 07:53:49,247 INFO L78 Accepts]: Start accepts. Automaton has 78061 states and 105285 transitions. Word has length 394 [2024-12-02 07:53:49,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:49,247 INFO L471 AbstractCegarLoop]: Abstraction has 78061 states and 105285 transitions. [2024-12-02 07:53:49,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 78061 states and 105285 transitions. [2024-12-02 07:53:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:49,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:49,301 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:49,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-12-02 07:53:49,301 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1582130514, now seen corresponding path program 1 times [2024-12-02 07:53:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:49,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454476991] [2024-12-02 07:53:49,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:53:52,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454476991] [2024-12-02 07:53:52,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454476991] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:52,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:52,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:53:52,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786877621] [2024-12-02 07:53:52,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:52,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:53:52,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:52,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:53:52,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:53:52,659 INFO L87 Difference]: Start difference. First operand 78061 states and 105285 transitions. Second operand has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:53,332 INFO L93 Difference]: Finished difference Result 147785 states and 200407 transitions. [2024-12-02 07:53:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:53:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:53,399 INFO L225 Difference]: With dead ends: 147785 [2024-12-02 07:53:53,400 INFO L226 Difference]: Without dead ends: 81583 [2024-12-02 07:53:53,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:53:53,438 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 304 mSDsluCounter, 5746 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 6568 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:53,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 6568 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:53:53,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81583 states. [2024-12-02 07:53:54,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81583 to 80877. [2024-12-02 07:53:54,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80877 states, 80876 states have (on average 1.3492877986052723) internal successors, (109125), 80876 states have internal predecessors, (109125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80877 states to 80877 states and 109125 transitions. [2024-12-02 07:53:54,246 INFO L78 Accepts]: Start accepts. Automaton has 80877 states and 109125 transitions. Word has length 394 [2024-12-02 07:53:54,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:54,247 INFO L471 AbstractCegarLoop]: Abstraction has 80877 states and 109125 transitions. [2024-12-02 07:53:54,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:54,247 INFO L276 IsEmpty]: Start isEmpty. Operand 80877 states and 109125 transitions. [2024-12-02 07:53:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:54,302 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:54,302 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:54,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-12-02 07:53:54,302 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:54,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1879224135, now seen corresponding path program 1 times [2024-12-02 07:53:54,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:54,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211250419] [2024-12-02 07:53:54,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:54,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:53:57,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:57,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211250419] [2024-12-02 07:53:57,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211250419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:57,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:57,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:53:57,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281228750] [2024-12-02 07:53:57,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:57,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:53:57,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:57,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:53:57,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:53:57,588 INFO L87 Difference]: Start difference. First operand 80877 states and 109125 transitions. Second operand has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:58,735 INFO L93 Difference]: Finished difference Result 151113 states and 204631 transitions. [2024-12-02 07:53:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:53:58,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:53:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:58,800 INFO L225 Difference]: With dead ends: 151113 [2024-12-02 07:53:58,800 INFO L226 Difference]: Without dead ends: 82095 [2024-12-02 07:53:58,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:53:58,838 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 729 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:58,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 4053 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:53:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82095 states. [2024-12-02 07:53:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82095 to 81901. [2024-12-02 07:53:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81901 states, 81900 states have (on average 1.3480463980463981) internal successors, (110405), 81900 states have internal predecessors, (110405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:59,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81901 states to 81901 states and 110405 transitions. [2024-12-02 07:53:59,721 INFO L78 Accepts]: Start accepts. Automaton has 81901 states and 110405 transitions. Word has length 394 [2024-12-02 07:53:59,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:59,721 INFO L471 AbstractCegarLoop]: Abstraction has 81901 states and 110405 transitions. [2024-12-02 07:53:59,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:53:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 81901 states and 110405 transitions. [2024-12-02 07:53:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:53:59,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:59,775 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:59,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-12-02 07:53:59,775 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:53:59,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 639338373, now seen corresponding path program 1 times [2024-12-02 07:53:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:59,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621806022] [2024-12-02 07:53:59,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 181 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 07:54:01,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:01,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621806022] [2024-12-02 07:54:01,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621806022] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:54:01,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154112366] [2024-12-02 07:54:01,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:01,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:54:01,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:54:01,691 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:54:01,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-12-02 07:54:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:04,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 07:54:04,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:54:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 183 proven. 32 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 07:54:05,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:54:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 149 proven. 66 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 07:54:06,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154112366] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:54:06,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:54:06,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 24 [2024-12-02 07:54:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131496620] [2024-12-02 07:54:06,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:54:06,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 07:54:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:06,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 07:54:06,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:54:06,027 INFO L87 Difference]: Start difference. First operand 81901 states and 110405 transitions. Second operand has 24 states, 24 states have (on average 31.958333333333332) internal successors, (767), 24 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:07,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:07,716 INFO L93 Difference]: Finished difference Result 199029 states and 268634 transitions. [2024-12-02 07:54:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:54:07,716 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 31.958333333333332) internal successors, (767), 24 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:07,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:07,792 INFO L225 Difference]: With dead ends: 199029 [2024-12-02 07:54:07,792 INFO L226 Difference]: Without dead ends: 119955 [2024-12-02 07:54:07,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 773 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=964, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 07:54:07,824 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 1414 mSDsluCounter, 4289 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 4662 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:07,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 4662 Invalid, 2138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:54:07,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119955 states. [2024-12-02 07:54:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119955 to 119955. [2024-12-02 07:54:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119955 states, 119954 states have (on average 1.350392650516031) internal successors, (161985), 119954 states have internal predecessors, (161985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119955 states to 119955 states and 161985 transitions. [2024-12-02 07:54:08,884 INFO L78 Accepts]: Start accepts. Automaton has 119955 states and 161985 transitions. Word has length 394 [2024-12-02 07:54:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:08,884 INFO L471 AbstractCegarLoop]: Abstraction has 119955 states and 161985 transitions. [2024-12-02 07:54:08,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 31.958333333333332) internal successors, (767), 24 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:08,884 INFO L276 IsEmpty]: Start isEmpty. Operand 119955 states and 161985 transitions. [2024-12-02 07:54:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:08,973 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:08,973 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:08,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-12-02 07:54:09,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:54:09,173 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:09,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:09,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1971129619, now seen corresponding path program 1 times [2024-12-02 07:54:09,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:09,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119473948] [2024-12-02 07:54:09,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:09,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:54:12,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:12,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119473948] [2024-12-02 07:54:12,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119473948] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:12,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:12,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:54:12,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790638404] [2024-12-02 07:54:12,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:12,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:54:12,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:12,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:54:12,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:54:12,715 INFO L87 Difference]: Start difference. First operand 119955 states and 161985 transitions. Second operand has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:13,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:13,316 INFO L93 Difference]: Finished difference Result 235119 states and 319163 transitions. [2024-12-02 07:54:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:54:13,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:13,407 INFO L225 Difference]: With dead ends: 235119 [2024-12-02 07:54:13,407 INFO L226 Difference]: Without dead ends: 129653 [2024-12-02 07:54:13,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:54:13,463 INFO L435 NwaCegarLoop]: 742 mSDtfsCounter, 336 mSDsluCounter, 5176 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:13,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 5918 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:54:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129653 states. [2024-12-02 07:54:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129653 to 127827. [2024-12-02 07:54:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127827 states, 127826 states have (on average 1.3543488805094426) internal successors, (173121), 127826 states have internal predecessors, (173121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127827 states to 127827 states and 173121 transitions. [2024-12-02 07:54:14,623 INFO L78 Accepts]: Start accepts. Automaton has 127827 states and 173121 transitions. Word has length 394 [2024-12-02 07:54:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:14,623 INFO L471 AbstractCegarLoop]: Abstraction has 127827 states and 173121 transitions. [2024-12-02 07:54:14,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 127827 states and 173121 transitions. [2024-12-02 07:54:14,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:14,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:14,716 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:14,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-12-02 07:54:14,717 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:14,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash -315817264, now seen corresponding path program 1 times [2024-12-02 07:54:14,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:14,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305688643] [2024-12-02 07:54:14,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:14,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-12-02 07:54:16,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305688643] [2024-12-02 07:54:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305688643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:16,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:16,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:54:16,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590848597] [2024-12-02 07:54:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:16,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:54:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:16,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:54:16,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:54:16,076 INFO L87 Difference]: Start difference. First operand 127827 states and 173121 transitions. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:16,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:16,634 INFO L93 Difference]: Finished difference Result 252069 states and 341698 transitions. [2024-12-02 07:54:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:54:16,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:16,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:16,729 INFO L225 Difference]: With dead ends: 252069 [2024-12-02 07:54:16,729 INFO L226 Difference]: Without dead ends: 129075 [2024-12-02 07:54:16,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:54:16,790 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 344 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:16,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1501 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:54:16,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129075 states. [2024-12-02 07:54:18,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129075 to 129075. [2024-12-02 07:54:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129075 states, 129074 states have (on average 1.3541456838712675) internal successors, (174785), 129074 states have internal predecessors, (174785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129075 states to 129075 states and 174785 transitions. [2024-12-02 07:54:18,378 INFO L78 Accepts]: Start accepts. Automaton has 129075 states and 174785 transitions. Word has length 394 [2024-12-02 07:54:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:18,378 INFO L471 AbstractCegarLoop]: Abstraction has 129075 states and 174785 transitions. [2024-12-02 07:54:18,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 129075 states and 174785 transitions. [2024-12-02 07:54:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:18,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:18,519 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:18,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-12-02 07:54:18,519 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:18,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:18,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2118239657, now seen corresponding path program 1 times [2024-12-02 07:54:18,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:18,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129872825] [2024-12-02 07:54:18,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:18,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-12-02 07:54:20,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:20,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129872825] [2024-12-02 07:54:20,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129872825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:20,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:20,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:54:20,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506878439] [2024-12-02 07:54:20,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:20,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:54:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:20,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:54:20,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:54:20,810 INFO L87 Difference]: Start difference. First operand 129075 states and 174785 transitions. Second operand has 7 states, 7 states have (on average 44.142857142857146) internal successors, (309), 7 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:21,777 INFO L93 Difference]: Finished difference Result 256837 states and 348162 transitions. [2024-12-02 07:54:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:54:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.142857142857146) internal successors, (309), 7 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:21,887 INFO L225 Difference]: With dead ends: 256837 [2024-12-02 07:54:21,887 INFO L226 Difference]: Without dead ends: 132403 [2024-12-02 07:54:21,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:54:21,957 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 346 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:21,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1739 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:54:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132403 states. [2024-12-02 07:54:23,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132403 to 130323. [2024-12-02 07:54:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130323 states, 130322 states have (on average 1.3539463789690152) internal successors, (176449), 130322 states have internal predecessors, (176449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130323 states to 130323 states and 176449 transitions. [2024-12-02 07:54:23,396 INFO L78 Accepts]: Start accepts. Automaton has 130323 states and 176449 transitions. Word has length 394 [2024-12-02 07:54:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:23,396 INFO L471 AbstractCegarLoop]: Abstraction has 130323 states and 176449 transitions. [2024-12-02 07:54:23,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.142857142857146) internal successors, (309), 7 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 130323 states and 176449 transitions. [2024-12-02 07:54:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:23,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:23,493 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:23,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-12-02 07:54:23,494 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:23,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1307369559, now seen corresponding path program 1 times [2024-12-02 07:54:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834571113] [2024-12-02 07:54:23,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 07:54:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:24,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834571113] [2024-12-02 07:54:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834571113] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:24,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:24,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:54:24,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782439332] [2024-12-02 07:54:24,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:24,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:54:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:24,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:54:24,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:54:24,072 INFO L87 Difference]: Start difference. First operand 130323 states and 176449 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:24,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:24,734 INFO L93 Difference]: Finished difference Result 257797 states and 349154 transitions. [2024-12-02 07:54:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:54:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:24,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:24,830 INFO L225 Difference]: With dead ends: 257797 [2024-12-02 07:54:24,830 INFO L226 Difference]: Without dead ends: 130739 [2024-12-02 07:54:24,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:54:24,888 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:24,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1583 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:54:24,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130739 states. [2024-12-02 07:54:26,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130739 to 130739. [2024-12-02 07:54:26,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130739 states, 130738 states have (on average 1.3528201441050038) internal successors, (176865), 130738 states have internal predecessors, (176865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130739 states to 130739 states and 176865 transitions. [2024-12-02 07:54:26,437 INFO L78 Accepts]: Start accepts. Automaton has 130739 states and 176865 transitions. Word has length 394 [2024-12-02 07:54:26,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:26,437 INFO L471 AbstractCegarLoop]: Abstraction has 130739 states and 176865 transitions. [2024-12-02 07:54:26,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 130739 states and 176865 transitions. [2024-12-02 07:54:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:26,520 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:26,520 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:26,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-12-02 07:54:26,520 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:26,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 350533074, now seen corresponding path program 1 times [2024-12-02 07:54:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:26,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885210804] [2024-12-02 07:54:26,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:26,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 07:54:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885210804] [2024-12-02 07:54:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885210804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:29,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:29,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:54:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331437084] [2024-12-02 07:54:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:29,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:54:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:29,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:54:29,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:54:29,907 INFO L87 Difference]: Start difference. First operand 130739 states and 176865 transitions. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:30,883 INFO L93 Difference]: Finished difference Result 261549 states and 354098 transitions. [2024-12-02 07:54:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:54:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:31,008 INFO L225 Difference]: With dead ends: 261549 [2024-12-02 07:54:31,009 INFO L226 Difference]: Without dead ends: 133651 [2024-12-02 07:54:31,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:54:31,081 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 346 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:31,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1721 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:54:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133651 states. [2024-12-02 07:54:32,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133651 to 129907. [2024-12-02 07:54:32,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129907 states, 129906 states have (on average 1.3550798269517959) internal successors, (176033), 129906 states have internal predecessors, (176033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129907 states to 129907 states and 176033 transitions. [2024-12-02 07:54:32,767 INFO L78 Accepts]: Start accepts. Automaton has 129907 states and 176033 transitions. Word has length 394 [2024-12-02 07:54:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:32,767 INFO L471 AbstractCegarLoop]: Abstraction has 129907 states and 176033 transitions. [2024-12-02 07:54:32,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 129907 states and 176033 transitions. [2024-12-02 07:54:32,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:32,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:32,855 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:32,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-12-02 07:54:32,855 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:32,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:32,855 INFO L85 PathProgramCache]: Analyzing trace with hash 61332522, now seen corresponding path program 1 times [2024-12-02 07:54:32,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:32,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103110465] [2024-12-02 07:54:32,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:32,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:54:35,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:35,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103110465] [2024-12-02 07:54:35,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103110465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:35,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:35,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:54:35,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246764435] [2024-12-02 07:54:35,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:35,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:54:35,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:35,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:54:35,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:54:35,879 INFO L87 Difference]: Start difference. First operand 129907 states and 176033 transitions. Second operand has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:37,146 INFO L93 Difference]: Finished difference Result 248815 states and 337963 transitions. [2024-12-02 07:54:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:54:37,147 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:37,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:37,236 INFO L225 Difference]: With dead ends: 248815 [2024-12-02 07:54:37,236 INFO L226 Difference]: Without dead ends: 133557 [2024-12-02 07:54:37,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:54:37,289 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 724 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:37,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 3216 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:54:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133557 states. [2024-12-02 07:54:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133557 to 133267. [2024-12-02 07:54:38,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133267 states, 133266 states have (on average 1.3508096588777332) internal successors, (180017), 133266 states have internal predecessors, (180017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133267 states to 133267 states and 180017 transitions. [2024-12-02 07:54:38,547 INFO L78 Accepts]: Start accepts. Automaton has 133267 states and 180017 transitions. Word has length 394 [2024-12-02 07:54:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:38,548 INFO L471 AbstractCegarLoop]: Abstraction has 133267 states and 180017 transitions. [2024-12-02 07:54:38,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.4) internal successors, (394), 10 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 133267 states and 180017 transitions. [2024-12-02 07:54:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:38,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:38,639 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:38,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-12-02 07:54:38,639 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:38,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash -278318379, now seen corresponding path program 1 times [2024-12-02 07:54:38,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:38,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916316304] [2024-12-02 07:54:38,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:38,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:54:44,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:44,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916316304] [2024-12-02 07:54:44,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916316304] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:54:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363078313] [2024-12-02 07:54:44,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:44,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:54:44,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:54:44,389 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:54:44,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-12-02 07:54:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:47,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 2504 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-12-02 07:54:47,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:54:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 07:54:48,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:54:48,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363078313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:48,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:54:48,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2024-12-02 07:54:48,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666008732] [2024-12-02 07:54:48,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:48,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:54:48,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:48,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:54:48,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:54:48,354 INFO L87 Difference]: Start difference. First operand 133267 states and 180017 transitions. Second operand has 13 states, 13 states have (on average 27.76923076923077) internal successors, (361), 13 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:49,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:49,916 INFO L93 Difference]: Finished difference Result 279189 states and 377022 transitions. [2024-12-02 07:54:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:54:49,917 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 27.76923076923077) internal successors, (361), 13 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:49,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:50,028 INFO L225 Difference]: With dead ends: 279189 [2024-12-02 07:54:50,028 INFO L226 Difference]: Without dead ends: 146451 [2024-12-02 07:54:50,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:54:50,094 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 600 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:50,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 3151 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:54:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146451 states. [2024-12-02 07:54:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146451 to 136723. [2024-12-02 07:54:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136723 states, 136722 states have (on average 1.3419420429777211) internal successors, (183473), 136722 states have internal predecessors, (183473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136723 states to 136723 states and 183473 transitions. [2024-12-02 07:54:51,724 INFO L78 Accepts]: Start accepts. Automaton has 136723 states and 183473 transitions. Word has length 394 [2024-12-02 07:54:51,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:51,724 INFO L471 AbstractCegarLoop]: Abstraction has 136723 states and 183473 transitions. [2024-12-02 07:54:51,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 27.76923076923077) internal successors, (361), 13 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 136723 states and 183473 transitions. [2024-12-02 07:54:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:51,806 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:51,807 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:51,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-12-02 07:54:52,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:54:52,007 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:52,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash -374039605, now seen corresponding path program 1 times [2024-12-02 07:54:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:52,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241862345] [2024-12-02 07:54:52,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:52,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:54:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:54:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 07:54:56,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:54:56,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241862345] [2024-12-02 07:54:56,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241862345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:54:56,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:54:56,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:54:56,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882839091] [2024-12-02 07:54:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:54:56,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:54:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:54:56,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:54:56,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:54:56,125 INFO L87 Difference]: Start difference. First operand 136723 states and 183473 transitions. Second operand has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:54:57,270 INFO L93 Difference]: Finished difference Result 266025 states and 357106 transitions. [2024-12-02 07:54:57,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:54:57,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:54:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:54:57,367 INFO L225 Difference]: With dead ends: 266025 [2024-12-02 07:54:57,368 INFO L226 Difference]: Without dead ends: 131375 [2024-12-02 07:54:57,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:54:57,435 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 344 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:54:57,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 2967 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:54:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131375 states. [2024-12-02 07:54:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131375 to 131375. [2024-12-02 07:54:58,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131375 states, 131374 states have (on average 1.3409426522751837) internal successors, (176165), 131374 states have internal predecessors, (176165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131375 states to 131375 states and 176165 transitions. [2024-12-02 07:54:58,967 INFO L78 Accepts]: Start accepts. Automaton has 131375 states and 176165 transitions. Word has length 394 [2024-12-02 07:54:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:54:58,968 INFO L471 AbstractCegarLoop]: Abstraction has 131375 states and 176165 transitions. [2024-12-02 07:54:58,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:54:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 131375 states and 176165 transitions. [2024-12-02 07:54:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:54:59,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:54:59,062 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:54:59,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-12-02 07:54:59,062 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:54:59,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:54:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash 102653964, now seen corresponding path program 1 times [2024-12-02 07:54:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:54:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24272387] [2024-12-02 07:54:59,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:54:59,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:03,458 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 107 proven. 73 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 07:55:03,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:03,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24272387] [2024-12-02 07:55:03,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24272387] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:55:03,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842732133] [2024-12-02 07:55:03,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:03,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:55:03,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:55:03,460 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:55:03,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-12-02 07:55:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:07,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 117 conjuncts are in the unsatisfiable core [2024-12-02 07:55:07,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:55:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 107 proven. 77 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 07:55:10,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:55:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 07:55:12,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842732133] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:55:12,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:55:12,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [12, 18] total 42 [2024-12-02 07:55:12,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706675926] [2024-12-02 07:55:12,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:12,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:55:12,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:12,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:55:12,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1534, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 07:55:12,887 INFO L87 Difference]: Start difference. First operand 131375 states and 176165 transitions. Second operand has 16 states, 16 states have (on average 22.4375) internal successors, (359), 16 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:17,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:17,086 INFO L93 Difference]: Finished difference Result 472823 states and 634899 transitions. [2024-12-02 07:55:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 07:55:17,086 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.4375) internal successors, (359), 16 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:55:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:17,352 INFO L225 Difference]: With dead ends: 472823 [2024-12-02 07:55:17,352 INFO L226 Difference]: Without dead ends: 355549 [2024-12-02 07:55:17,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=273, Invalid=1983, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 07:55:17,448 INFO L435 NwaCegarLoop]: 1061 mSDtfsCounter, 2248 mSDsluCounter, 6009 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 7070 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:17,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 7070 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 07:55:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355549 states. [2024-12-02 07:55:19,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355549 to 133615. [2024-12-02 07:55:19,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133615 states, 133614 states have (on average 1.3432798958193004) internal successors, (179481), 133614 states have internal predecessors, (179481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133615 states to 133615 states and 179481 transitions. [2024-12-02 07:55:19,744 INFO L78 Accepts]: Start accepts. Automaton has 133615 states and 179481 transitions. Word has length 394 [2024-12-02 07:55:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:19,744 INFO L471 AbstractCegarLoop]: Abstraction has 133615 states and 179481 transitions. [2024-12-02 07:55:19,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.4375) internal successors, (359), 16 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 133615 states and 179481 transitions. [2024-12-02 07:55:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:55:19,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:19,838 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:19,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-12-02 07:55:20,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3adcb0-40f4-414f-ade5-41471befb4c9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-12-02 07:55:20,039 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:20,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:20,039 INFO L85 PathProgramCache]: Analyzing trace with hash -815002788, now seen corresponding path program 1 times [2024-12-02 07:55:20,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:20,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673414380] [2024-12-02 07:55:20,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:20,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:55:20,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:20,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673414380] [2024-12-02 07:55:20,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673414380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:20,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:20,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:20,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603801745] [2024-12-02 07:55:20,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:20,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:20,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:20,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:20,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:20,658 INFO L87 Difference]: Start difference. First operand 133615 states and 179481 transitions. Second operand has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:21,386 INFO L93 Difference]: Finished difference Result 263529 states and 353634 transitions. [2024-12-02 07:55:21,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:55:21,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:55:21,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:21,480 INFO L225 Difference]: With dead ends: 263529 [2024-12-02 07:55:21,480 INFO L226 Difference]: Without dead ends: 133415 [2024-12-02 07:55:21,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:21,525 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 16 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:21,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2158 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:55:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133415 states. [2024-12-02 07:55:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133415 to 132139. [2024-12-02 07:55:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132139 states, 132138 states have (on average 1.3396676202152296) internal successors, (177021), 132138 states have internal predecessors, (177021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132139 states to 132139 states and 177021 transitions. [2024-12-02 07:55:23,379 INFO L78 Accepts]: Start accepts. Automaton has 132139 states and 177021 transitions. Word has length 394 [2024-12-02 07:55:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:23,379 INFO L471 AbstractCegarLoop]: Abstraction has 132139 states and 177021 transitions. [2024-12-02 07:55:23,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 132139 states and 177021 transitions. [2024-12-02 07:55:23,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-12-02 07:55:23,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:23,470 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:23,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-12-02 07:55:23,471 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:23,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:23,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1672451028, now seen corresponding path program 1 times [2024-12-02 07:55:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:23,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381583141] [2024-12-02 07:55:23,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 07:55:26,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:26,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381583141] [2024-12-02 07:55:26,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381583141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:26,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:26,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:55:26,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277519477] [2024-12-02 07:55:26,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:26,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:55:26,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:26,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:55:26,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:26,968 INFO L87 Difference]: Start difference. First operand 132139 states and 177021 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:27,766 INFO L93 Difference]: Finished difference Result 258413 states and 346014 transitions. [2024-12-02 07:55:27,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:55:27,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-12-02 07:55:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:27,852 INFO L225 Difference]: With dead ends: 258413 [2024-12-02 07:55:27,853 INFO L226 Difference]: Without dead ends: 129559 [2024-12-02 07:55:27,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:27,896 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 1085 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:27,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1401 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:55:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129559 states. [2024-12-02 07:55:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129559 to 129553. [2024-12-02 07:55:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129553 states, 129552 states have (on average 1.3391533901444979) internal successors, (173490), 129552 states have internal predecessors, (173490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129553 states to 129553 states and 173490 transitions. [2024-12-02 07:55:29,130 INFO L78 Accepts]: Start accepts. Automaton has 129553 states and 173490 transitions. Word has length 394 [2024-12-02 07:55:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:29,130 INFO L471 AbstractCegarLoop]: Abstraction has 129553 states and 173490 transitions. [2024-12-02 07:55:29,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:29,130 INFO L276 IsEmpty]: Start isEmpty. Operand 129553 states and 173490 transitions. [2024-12-02 07:55:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-12-02 07:55:29,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:29,232 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:29,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-12-02 07:55:29,232 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:29,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:29,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1072526896, now seen corresponding path program 1 times [2024-12-02 07:55:29,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:29,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44494576] [2024-12-02 07:55:29,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:29,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:55:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:33,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44494576] [2024-12-02 07:55:33,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44494576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:33,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:33,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:55:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854446556] [2024-12-02 07:55:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:33,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:55:33,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:33,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:55:33,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:55:33,190 INFO L87 Difference]: Start difference. First operand 129553 states and 173490 transitions. Second operand has 10 states, 10 states have (on average 39.5) internal successors, (395), 10 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:34,013 INFO L93 Difference]: Finished difference Result 362287 states and 485976 transitions. [2024-12-02 07:55:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:55:34,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.5) internal successors, (395), 10 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-12-02 07:55:34,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:34,195 INFO L225 Difference]: With dead ends: 362287 [2024-12-02 07:55:34,195 INFO L226 Difference]: Without dead ends: 244421 [2024-12-02 07:55:34,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:55:34,272 INFO L435 NwaCegarLoop]: 914 mSDtfsCounter, 334 mSDsluCounter, 6386 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 7300 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:34,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 7300 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:55:34,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244421 states. [2024-12-02 07:55:36,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244421 to 241859. [2024-12-02 07:55:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241859 states, 241858 states have (on average 1.3388930694870544) internal successors, (323822), 241858 states have internal predecessors, (323822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241859 states to 241859 states and 323822 transitions. [2024-12-02 07:55:36,809 INFO L78 Accepts]: Start accepts. Automaton has 241859 states and 323822 transitions. Word has length 395 [2024-12-02 07:55:36,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:36,809 INFO L471 AbstractCegarLoop]: Abstraction has 241859 states and 323822 transitions. [2024-12-02 07:55:36,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.5) internal successors, (395), 10 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 241859 states and 323822 transitions. [2024-12-02 07:55:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-12-02 07:55:36,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:36,983 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:36,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-12-02 07:55:36,983 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:36,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:36,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2009486604, now seen corresponding path program 1 times [2024-12-02 07:55:36,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:36,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114173128] [2024-12-02 07:55:36,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-12-02 07:55:38,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:38,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114173128] [2024-12-02 07:55:38,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114173128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:38,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:38,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:55:38,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592894753] [2024-12-02 07:55:38,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:38,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:55:38,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:38,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:55:38,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:38,494 INFO L87 Difference]: Start difference. First operand 241859 states and 323822 transitions. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:39,769 INFO L93 Difference]: Finished difference Result 478495 states and 640531 transitions. [2024-12-02 07:55:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:55:39,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-12-02 07:55:39,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:39,953 INFO L225 Difference]: With dead ends: 478495 [2024-12-02 07:55:39,953 INFO L226 Difference]: Without dead ends: 242291 [2024-12-02 07:55:40,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:40,038 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 344 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:40,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1500 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:55:40,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242291 states. [2024-12-02 07:55:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242291 to 242291. [2024-12-02 07:55:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242291 states, 242290 states have (on average 1.3388831565479384) internal successors, (324398), 242290 states have internal predecessors, (324398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242291 states to 242291 states and 324398 transitions. [2024-12-02 07:55:42,709 INFO L78 Accepts]: Start accepts. Automaton has 242291 states and 324398 transitions. Word has length 395 [2024-12-02 07:55:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:42,710 INFO L471 AbstractCegarLoop]: Abstraction has 242291 states and 324398 transitions. [2024-12-02 07:55:42,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 242291 states and 324398 transitions. [2024-12-02 07:55:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-12-02 07:55:42,988 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:42,988 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:42,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-12-02 07:55:42,989 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:42,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:42,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1167054381, now seen corresponding path program 1 times [2024-12-02 07:55:42,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:42,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762092073] [2024-12-02 07:55:42,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-12-02 07:55:45,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:45,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762092073] [2024-12-02 07:55:45,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762092073] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:45,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:45,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:55:45,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383461101] [2024-12-02 07:55:45,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:45,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:55:45,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:45,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:55:45,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:45,093 INFO L87 Difference]: Start difference. First operand 242291 states and 324398 transitions. Second operand has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 7 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:55:46,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:46,450 INFO L93 Difference]: Finished difference Result 479311 states and 641475 transitions. [2024-12-02 07:55:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:55:46,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 7 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-12-02 07:55:46,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:46,859 INFO L225 Difference]: With dead ends: 479311 [2024-12-02 07:55:46,859 INFO L226 Difference]: Without dead ends: 242723 [2024-12-02 07:55:46,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:46,906 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 347 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:46,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1737 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:55:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242723 states. [2024-12-02 07:55:48,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242723 to 242291. [2024-12-02 07:55:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242291 states, 242290 states have (on average 1.3388831565479384) internal successors, (324398), 242290 states have internal predecessors, (324398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)